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Finding the Fourth Proportional to 416,580.60, 625,065.30 and 217,126.20

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Solution

The fourth proportional to 416,580.60, 625,065.30 and 217,126.20 is: 325,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,580.60 : 625,065.30 = 217,126.20 : x
  2. Step 2: Convert to fraction form
    416,580.60/625,065.30 = 217,126.20/x
  3. Step 3: Cross multiply
    416,580.60x = 625,065.30 × 217,126.20
  4. Step 4: Simplify right side
    416,580.60x = 135,718,053,340.86
  5. Step 5: Solve for x
    x = 135,718,053,340.86/416,580.60
  6. Step 6: Final answer
    x = 325,790.62

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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.