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Finding the Fourth Proportional to 529,038.59, 729,651.17 and 347,936.47

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Solution

The fourth proportional to 529,038.59, 729,651.17 and 347,936.47 is: 479,874.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,038.59 : 729,651.17 = 347,936.47 : x
  2. Step 2: Convert to fraction form
    529,038.59/729,651.17 = 347,936.47/x
  3. Step 3: Cross multiply
    529,038.59x = 729,651.17 × 347,936.47
  4. Step 4: Simplify right side
    529,038.59x = 253,872,251,466.88
  5. Step 5: Solve for x
    x = 253,872,251,466.88/529,038.59
  6. Step 6: Final answer
    x = 479,874.74

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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.