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Finding the Fourth Proportional to 425,663.64, 587,441.16 and 234,675.90

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Solution

The fourth proportional to 425,663.64, 587,441.16 and 234,675.90 is: 323,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,663.64 : 587,441.16 = 234,675.90 : x
  2. Step 2: Convert to fraction form
    425,663.64/587,441.16 = 234,675.90/x
  3. Step 3: Cross multiply
    425,663.64x = 587,441.16 × 234,675.90
  4. Step 4: Simplify right side
    425,663.64x = 137,858,282,920.04
  5. Step 5: Solve for x
    x = 137,858,282,920.04/425,663.64
  6. Step 6: Final answer
    x = 323,866.71

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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.