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Finding the Fourth Proportional to 342,482.39, 472,815.72 and 206,550.91

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Solution

The fourth proportional to 342,482.39, 472,815.72 and 206,550.91 is: 285,154.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,482.39 : 472,815.72 = 206,550.91 : x
  2. Step 2: Convert to fraction form
    342,482.39/472,815.72 = 206,550.91/x
  3. Step 3: Cross multiply
    342,482.39x = 472,815.72 × 206,550.91
  4. Step 4: Simplify right side
    342,482.39x = 97,660,516,046.27
  5. Step 5: Solve for x
    x = 97,660,516,046.27/342,482.39
  6. Step 6: Final answer
    x = 285,154.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.