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Finding the Fourth Proportional to 721,612.49, 995,757.59 and 431,166.24

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Solution

The fourth proportional to 721,612.49, 995,757.59 and 431,166.24 is: 594,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,612.49 : 995,757.59 = 431,166.24 : x
  2. Step 2: Convert to fraction form
    721,612.49/995,757.59 = 431,166.24/x
  3. Step 3: Cross multiply
    721,612.49x = 995,757.59 × 431,166.24
  4. Step 4: Simplify right side
    721,612.49x = 429,337,057,109.68
  5. Step 5: Solve for x
    x = 429,337,057,109.68/721,612.49
  6. Step 6: Final answer
    x = 594,969.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.