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Finding the Fourth Proportional to 539,637.34, 744,700.47 and 297,920.30

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Solution

The fourth proportional to 539,637.34, 744,700.47 and 297,920.30 is: 411,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,637.34 : 744,700.47 = 297,920.30 : x
  2. Step 2: Convert to fraction form
    539,637.34/744,700.47 = 297,920.30/x
  3. Step 3: Cross multiply
    539,637.34x = 744,700.47 × 297,920.30
  4. Step 4: Simplify right side
    539,637.34x = 221,861,387,432.54
  5. Step 5: Solve for x
    x = 221,861,387,432.54/539,637.34
  6. Step 6: Final answer
    x = 411,130.53

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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.