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Finding the Fourth Proportional to 457,471.53, 631,324.80 and 253,503.54

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Solution

The fourth proportional to 457,471.53, 631,324.80 and 253,503.54 is: 349,842.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,471.53 : 631,324.80 = 253,503.54 : x
  2. Step 2: Convert to fraction form
    457,471.53/631,324.80 = 253,503.54/x
  3. Step 3: Cross multiply
    457,471.53x = 631,324.80 × 253,503.54
  4. Step 4: Simplify right side
    457,471.53x = 160,043,071,689.79
  5. Step 5: Solve for x
    x = 160,043,071,689.79/457,471.53
  6. Step 6: Final answer
    x = 349,842.69

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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.