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Finding the Fourth Proportional to 474,445.92, 654,670.70 and 283,418.76

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Solution

The fourth proportional to 474,445.92, 654,670.70 and 283,418.76 is: 391,079.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,445.92 : 654,670.70 = 283,418.76 : x
  2. Step 2: Convert to fraction form
    474,445.92/654,670.70 = 283,418.76/x
  3. Step 3: Cross multiply
    474,445.92x = 654,670.70 × 283,418.76
  4. Step 4: Simplify right side
    474,445.92x = 185,545,958,002.33
  5. Step 5: Solve for x
    x = 185,545,958,002.33/474,445.92
  6. Step 6: Final answer
    x = 391,079.26

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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.