Home / 649,687.20-974,530.80-539,095.20

Finding the Fourth Proportional to 649,687.20, 974,530.80 and 539,095.20

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Solution

The fourth proportional to 649,687.20, 974,530.80 and 539,095.20 is: 808,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,687.20 : 974,530.80 = 539,095.20 : x
  2. Step 2: Convert to fraction form
    649,687.20/974,530.80 = 539,095.20/x
  3. Step 3: Cross multiply
    649,687.20x = 974,530.80 × 539,095.20
  4. Step 4: Simplify right side
    649,687.20x = 525,364,876,532.16
  5. Step 5: Solve for x
    x = 525,364,876,532.16/649,687.20
  6. Step 6: Final answer
    x = 808,642.80

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Double scale
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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.