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Finding the Fourth Proportional to 587,512.60, 881,268.90 and 338,680.60

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Solution

The fourth proportional to 587,512.60, 881,268.90 and 338,680.60 is: 508,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,512.60 : 881,268.90 = 338,680.60 : x
  2. Step 2: Convert to fraction form
    587,512.60/881,268.90 = 338,680.60/x
  3. Step 3: Cross multiply
    587,512.60x = 881,268.90 × 338,680.60
  4. Step 4: Simplify right side
    587,512.60x = 298,468,679,813.34
  5. Step 5: Solve for x
    x = 298,468,679,813.34/587,512.60
  6. Step 6: Final answer
    x = 508,020.90

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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.