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Finding the Fourth Proportional to 486,098.60, 729,147.90 and 368,000.60

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Solution

The fourth proportional to 486,098.60, 729,147.90 and 368,000.60 is: 552,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,098.60 : 729,147.90 = 368,000.60 : x
  2. Step 2: Convert to fraction form
    486,098.60/729,147.90 = 368,000.60/x
  3. Step 3: Cross multiply
    486,098.60x = 729,147.90 × 368,000.60
  4. Step 4: Simplify right side
    486,098.60x = 268,326,864,688.74
  5. Step 5: Solve for x
    x = 268,326,864,688.74/486,098.60
  6. Step 6: Final answer
    x = 552,000.90

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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.