Home / 649,540,987.60-974,311,481.40-511,791,480.40

Finding the Fourth Proportional to 649,540,987.60, 974,311,481.40 and 511,791,480.40

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Solution

The fourth proportional to 649,540,987.60, 974,311,481.40 and 511,791,480.40 is: 767,687,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,540,987.60 : 974,311,481.40 = 511,791,480.40 : x
  2. Step 2: Convert to fraction form
    649,540,987.60/974,311,481.40 = 511,791,480.40/x
  3. Step 3: Cross multiply
    649,540,987.60x = 974,311,481.40 × 511,791,480.40
  4. Step 4: Simplify right side
    649,540,987.60x = 498,644,315,436,423,040
  5. Step 5: Solve for x
    x = 498,644,315,436,423,040/649,540,987.60
  6. Step 6: Final answer
    x = 767,687,220.60

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Half scale
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Double scale
Find fourth proportional to 649,540,988.60, 974,311,482.90 and 511,791,481.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.