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Finding the Fourth Proportional to 488,555.40, 732,833.10 and 133,605.30

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Solution

The fourth proportional to 488,555.40, 732,833.10 and 133,605.30 is: 200,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,555.40 : 732,833.10 = 133,605.30 : x
  2. Step 2: Convert to fraction form
    488,555.40/732,833.10 = 133,605.30/x
  3. Step 3: Cross multiply
    488,555.40x = 732,833.10 × 133,605.30
  4. Step 4: Simplify right side
    488,555.40x = 97,910,386,175.43
  5. Step 5: Solve for x
    x = 97,910,386,175.43/488,555.40
  6. Step 6: Final answer
    x = 200,407.95

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Similar ratio
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1.5x scale

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.