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Finding the Fourth Proportional to 415,218.56, 573,002.88 and 240,822.56

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Solution

The fourth proportional to 415,218.56, 573,002.88 and 240,822.56 is: 332,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,218.56 : 573,002.88 = 240,822.56 : x
  2. Step 2: Convert to fraction form
    415,218.56/573,002.88 = 240,822.56/x
  3. Step 3: Cross multiply
    415,218.56x = 573,002.88 × 240,822.56
  4. Step 4: Simplify right side
    415,218.56x = 137,992,020,448.97
  5. Step 5: Solve for x
    x = 137,992,020,448.97/415,218.56
  6. Step 6: Final answer
    x = 332,335.87

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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.