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Finding the Fourth Proportional to 529,127.28, 729,915.72 and 335,192.82

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Solution

The fourth proportional to 529,127.28, 729,915.72 and 335,192.82 is: 462,388.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,127.28 : 729,915.72 = 335,192.82 : x
  2. Step 2: Convert to fraction form
    529,127.28/729,915.72 = 335,192.82/x
  3. Step 3: Cross multiply
    529,127.28x = 729,915.72 × 335,192.82
  4. Step 4: Simplify right side
    529,127.28x = 244,662,508,549.13
  5. Step 5: Solve for x
    x = 244,662,508,549.13/529,127.28
  6. Step 6: Final answer
    x = 462,388.76

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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.