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Finding the Fourth Proportional to 866,473.80, 1,195,641.81 and 479,227.68

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Solution

The fourth proportional to 866,473.80, 1,195,641.81 and 479,227.68 is: 661,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,473.80 : 1,195,641.81 = 479,227.68 : x
  2. Step 2: Convert to fraction form
    866,473.80/1,195,641.81 = 479,227.68/x
  3. Step 3: Cross multiply
    866,473.80x = 1,195,641.81 × 479,227.68
  4. Step 4: Simplify right side
    866,473.80x = 572,984,650,717.30
  5. Step 5: Solve for x
    x = 572,984,650,717.30/866,473.80
  6. Step 6: Final answer
    x = 661,283.30

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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.