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Finding the Fourth Proportional to 457,264.71, 631,025.19 and 253,328.85

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Solution

The fourth proportional to 457,264.71, 631,025.19 and 253,328.85 is: 349,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,264.71 : 631,025.19 = 253,328.85 : x
  2. Step 2: Convert to fraction form
    457,264.71/631,025.19 = 253,328.85/x
  3. Step 3: Cross multiply
    457,264.71x = 631,025.19 × 253,328.85
  4. Step 4: Simplify right side
    457,264.71x = 159,856,885,703.73
  5. Step 5: Solve for x
    x = 159,856,885,703.73/457,264.71
  6. Step 6: Final answer
    x = 349,593.75

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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.