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Finding the Fourth Proportional to 568,602.75, 784,651.20 and 313,948.47

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Solution

The fourth proportional to 568,602.75, 784,651.20 and 313,948.47 is: 433,237.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,602.75 : 784,651.20 = 313,948.47 : x
  2. Step 2: Convert to fraction form
    568,602.75/784,651.20 = 313,948.47/x
  3. Step 3: Cross multiply
    568,602.75x = 784,651.20 × 313,948.47
  4. Step 4: Simplify right side
    568,602.75x = 246,340,043,723.66
  5. Step 5: Solve for x
    x = 246,340,043,723.66/568,602.75
  6. Step 6: Final answer
    x = 433,237.52

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Double scale
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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.