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Finding the Fourth Proportional to 378,203.60, 567,305.40 and 167,862.80

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Solution

The fourth proportional to 378,203.60, 567,305.40 and 167,862.80 is: 251,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,203.60 : 567,305.40 = 167,862.80 : x
  2. Step 2: Convert to fraction form
    378,203.60/567,305.40 = 167,862.80/x
  3. Step 3: Cross multiply
    378,203.60x = 567,305.40 × 167,862.80
  4. Step 4: Simplify right side
    378,203.60x = 95,229,472,899.12
  5. Step 5: Solve for x
    x = 95,229,472,899.12/378,203.60
  6. Step 6: Final answer
    x = 251,794.20

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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.