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Finding the Fourth Proportional to 376,796.38, 519,948.84 and 215,614.48

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Solution

The fourth proportional to 376,796.38, 519,948.84 and 215,614.48 is: 297,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,796.38 : 519,948.84 = 215,614.48 : x
  2. Step 2: Convert to fraction form
    376,796.38/519,948.84 = 215,614.48/x
  3. Step 3: Cross multiply
    376,796.38x = 519,948.84 × 215,614.48
  4. Step 4: Simplify right side
    376,796.38x = 112,108,498,763.20
  5. Step 5: Solve for x
    x = 112,108,498,763.20/376,796.38
  6. Step 6: Final answer
    x = 297,530.72

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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.