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Finding the Fourth Proportional to 539,614.12, 744,670.30 and 297,892.28

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Solution

The fourth proportional to 539,614.12, 744,670.30 and 297,892.28 is: 411,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,614.12 : 744,670.30 = 297,892.28 : x
  2. Step 2: Convert to fraction form
    539,614.12/744,670.30 = 297,892.28/x
  3. Step 3: Cross multiply
    539,614.12x = 744,670.30 × 297,892.28
  4. Step 4: Simplify right side
    539,614.12x = 221,831,533,515.28
  5. Step 5: Solve for x
    x = 221,831,533,515.28/539,614.12
  6. Step 6: Final answer
    x = 411,092.90

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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.