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Finding the Fourth Proportional to 415,294.14, 573,111.28 and 245,526.78

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Solution

The fourth proportional to 415,294.14, 573,111.28 and 245,526.78 is: 338,830.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,294.14 : 573,111.28 = 245,526.78 : x
  2. Step 2: Convert to fraction form
    415,294.14/573,111.28 = 245,526.78/x
  3. Step 3: Cross multiply
    415,294.14x = 573,111.28 × 245,526.78
  4. Step 4: Simplify right side
    415,294.14x = 140,714,167,160.08
  5. Step 5: Solve for x
    x = 140,714,167,160.08/415,294.14
  6. Step 6: Final answer
    x = 338,830.13

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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.