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Finding the Fourth Proportional to 457,382.42, 631,187.12 and 253,446.54

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Solution

The fourth proportional to 457,382.42, 631,187.12 and 253,446.54 is: 349,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,382.42 : 631,187.12 = 253,446.54 : x
  2. Step 2: Convert to fraction form
    457,382.42/631,187.12 = 253,446.54/x
  3. Step 3: Cross multiply
    457,382.42x = 631,187.12 × 253,446.54
  4. Step 4: Simplify right side
    457,382.42x = 159,972,193,823.23
  5. Step 5: Solve for x
    x = 159,972,193,823.23/457,382.42
  6. Step 6: Final answer
    x = 349,755.89

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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.