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Finding the Fourth Proportional to 338,478.64, 506,721.68 and 250,126.32

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Solution

The fourth proportional to 338,478.64, 506,721.68 and 250,126.32 is: 374,453.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,478.64 : 506,721.68 = 250,126.32 : x
  2. Step 2: Convert to fraction form
    338,478.64/506,721.68 = 250,126.32/x
  3. Step 3: Cross multiply
    338,478.64x = 506,721.68 × 250,126.32
  4. Step 4: Simplify right side
    338,478.64x = 126,744,429,082.62
  5. Step 5: Solve for x
    x = 126,744,429,082.62/338,478.64
  6. Step 6: Final answer
    x = 374,453.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.