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Finding the Fourth Proportional to 426,116.88, 588,026.52 and 235,138.32

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Solution

The fourth proportional to 426,116.88, 588,026.52 and 235,138.32 is: 324,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,116.88 : 588,026.52 = 235,138.32 : x
  2. Step 2: Convert to fraction form
    426,116.88/588,026.52 = 235,138.32/x
  3. Step 3: Cross multiply
    426,116.88x = 588,026.52 × 235,138.32
  4. Step 4: Simplify right side
    426,116.88x = 138,267,568,028.25
  5. Step 5: Solve for x
    x = 138,267,568,028.25/426,116.88
  6. Step 6: Final answer
    x = 324,482.73

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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.