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Finding the Fourth Proportional to 457,451.31, 631,265.64 and 253,496.97

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Solution

The fourth proportional to 457,451.31, 631,265.64 and 253,496.97 is: 349,816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,451.31 : 631,265.64 = 253,496.97 : x
  2. Step 2: Convert to fraction form
    457,451.31/631,265.64 = 253,496.97/x
  3. Step 3: Cross multiply
    457,451.31x = 631,265.64 × 253,496.97
  4. Step 4: Simplify right side
    457,451.31x = 160,023,927,005.11
  5. Step 5: Solve for x
    x = 160,023,927,005.11/457,451.31
  6. Step 6: Final answer
    x = 349,816.31

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1.5x scale

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.