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Finding the Fourth Proportional to 457,471.98, 631,312.92 and 253,526.31

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Solution

The fourth proportional to 457,471.98, 631,312.92 and 253,526.31 is: 349,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,471.98 : 631,312.92 = 253,526.31 : x
  2. Step 2: Convert to fraction form
    457,471.98/631,312.92 = 253,526.31/x
  3. Step 3: Cross multiply
    457,471.98x = 631,312.92 × 253,526.31
  4. Step 4: Simplify right side
    457,471.98x = 160,054,435,062.93
  5. Step 5: Solve for x
    x = 160,054,435,062.93/457,471.98
  6. Step 6: Final answer
    x = 349,867.19

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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.