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Finding the Fourth Proportional to 529,524, 730,743.12 and 291,060

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Solution

The fourth proportional to 529,524, 730,743.12 and 291,060 is: 401,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,524 : 730,743.12 = 291,060 : x
  2. Step 2: Convert to fraction form
    529,524/730,743.12 = 291,060/x
  3. Step 3: Cross multiply
    529,524x = 730,743.12 × 291,060
  4. Step 4: Simplify right side
    529,524x = 212,690,092,507.20
  5. Step 5: Solve for x
    x = 212,690,092,507.20/529,524
  6. Step 6: Final answer
    x = 401,662.80

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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.