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Finding the Fourth Proportional to 568,581.60, 784,654.84 and 313,948.88

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Solution

The fourth proportional to 568,581.60, 784,654.84 and 313,948.88 is: 433,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,581.60 : 784,654.84 = 313,948.88 : x
  2. Step 2: Convert to fraction form
    568,581.60/784,654.84 = 313,948.88/x
  3. Step 3: Cross multiply
    568,581.60x = 784,654.84 × 313,948.88
  4. Step 4: Simplify right side
    568,581.60x = 246,341,508,204.58
  5. Step 5: Solve for x
    x = 246,341,508,204.58/568,581.60
  6. Step 6: Final answer
    x = 433,256.21

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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.