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Finding the Fourth Proportional to 425,978.64, 587,847.24 and 235,000.08

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Solution

The fourth proportional to 425,978.64, 587,847.24 and 235,000.08 is: 324,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,978.64 : 587,847.24 = 235,000.08 : x
  2. Step 2: Convert to fraction form
    425,978.64/587,847.24 = 235,000.08/x
  3. Step 3: Cross multiply
    425,978.64x = 587,847.24 × 235,000.08
  4. Step 4: Simplify right side
    425,978.64x = 138,144,148,427.78
  5. Step 5: Solve for x
    x = 138,144,148,427.78/425,978.64
  6. Step 6: Final answer
    x = 324,298.30

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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.