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Finding the Fourth Proportional to 591,705.70, 887,558.55 and 217,680.10

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Solution

The fourth proportional to 591,705.70, 887,558.55 and 217,680.10 is: 326,520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,705.70 : 887,558.55 = 217,680.10 : x
  2. Step 2: Convert to fraction form
    591,705.70/887,558.55 = 217,680.10/x
  3. Step 3: Cross multiply
    591,705.70x = 887,558.55 × 217,680.10
  4. Step 4: Simplify right side
    591,705.70x = 193,203,833,919.86
  5. Step 5: Solve for x
    x = 193,203,833,919.86/591,705.70
  6. Step 6: Final answer
    x = 326,520.15

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Double scale
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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.