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Finding the Fourth Proportional to 341,920.38, 471,859.56 and 188,968.49

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Solution

The fourth proportional to 341,920.38, 471,859.56 and 188,968.49 is: 260,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,920.38 : 471,859.56 = 188,968.49 : x
  2. Step 2: Convert to fraction form
    341,920.38/471,859.56 = 188,968.49/x
  3. Step 3: Cross multiply
    341,920.38x = 471,859.56 × 188,968.49
  4. Step 4: Simplify right side
    341,920.38x = 89,166,588,545.26
  5. Step 5: Solve for x
    x = 89,166,588,545.26/341,920.38
  6. Step 6: Final answer
    x = 260,781.73

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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.