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Finding the Fourth Proportional to 413,748.80, 620,565.60 and 133,294.40

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Solution

The fourth proportional to 413,748.80, 620,565.60 and 133,294.40 is: 199,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,748.80 : 620,565.60 = 133,294.40 : x
  2. Step 2: Convert to fraction form
    413,748.80/620,565.60 = 133,294.40/x
  3. Step 3: Cross multiply
    413,748.80x = 620,565.60 × 133,294.40
  4. Step 4: Simplify right side
    413,748.80x = 82,717,919,312.64
  5. Step 5: Solve for x
    x = 82,717,919,312.64/413,748.80
  6. Step 6: Final answer
    x = 199,923.04

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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.