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Finding the Fourth Proportional to 416,691.84, 625,081.68 and 136,208.64

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Solution

The fourth proportional to 416,691.84, 625,081.68 and 136,208.64 is: 204,327.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,691.84 : 625,081.68 = 136,208.64 : x
  2. Step 2: Convert to fraction form
    416,691.84/625,081.68 = 136,208.64/x
  3. Step 3: Cross multiply
    416,691.84x = 625,081.68 × 136,208.64
  4. Step 4: Simplify right side
    416,691.84x = 85,141,525,521.72
  5. Step 5: Solve for x
    x = 85,141,525,521.72/416,691.84
  6. Step 6: Final answer
    x = 204,327.32

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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.