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Finding the Fourth Proportional to 532,405.80, 798,608.70 and 177,431.40

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Solution

The fourth proportional to 532,405.80, 798,608.70 and 177,431.40 is: 266,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,405.80 : 798,608.70 = 177,431.40 : x
  2. Step 2: Convert to fraction form
    532,405.80/798,608.70 = 177,431.40/x
  3. Step 3: Cross multiply
    532,405.80x = 798,608.70 × 177,431.40
  4. Step 4: Simplify right side
    532,405.80x = 141,698,259,693.18
  5. Step 5: Solve for x
    x = 141,698,259,693.18/532,405.80
  6. Step 6: Final answer
    x = 266,147.10

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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.