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Finding the Fourth Proportional to 425,423.88, 587,077.46 and 231,833.32

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Solution

The fourth proportional to 425,423.88, 587,077.46 and 231,833.32 is: 319,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,423.88 : 587,077.46 = 231,833.32 : x
  2. Step 2: Convert to fraction form
    425,423.88/587,077.46 = 231,833.32/x
  3. Step 3: Cross multiply
    425,423.88x = 587,077.46 × 231,833.32
  4. Step 4: Simplify right side
    425,423.88x = 136,104,116,648.97
  5. Step 5: Solve for x
    x = 136,104,116,648.97/425,423.88
  6. Step 6: Final answer
    x = 319,925.90

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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.