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Finding the Fourth Proportional to 426,118.89, 588,026.88 and 235,129.80

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Solution

The fourth proportional to 426,118.89, 588,026.88 and 235,129.80 is: 324,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,118.89 : 588,026.88 = 235,129.80 : x
  2. Step 2: Convert to fraction form
    426,118.89/588,026.88 = 235,129.80/x
  3. Step 3: Cross multiply
    426,118.89x = 588,026.88 × 235,129.80
  4. Step 4: Simplify right side
    426,118.89x = 138,262,642,689.02
  5. Step 5: Solve for x
    x = 138,262,642,689.02/426,118.89
  6. Step 6: Final answer
    x = 324,469.64

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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.