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Finding the Fourth Proportional to 425,645.52, 587,380.32 and 234,655.08

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Solution

The fourth proportional to 425,645.52, 587,380.32 and 234,655.08 is: 323,818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,645.52 : 587,380.32 = 234,655.08 : x
  2. Step 2: Convert to fraction form
    425,645.52/587,380.32 = 234,655.08/x
  3. Step 3: Cross multiply
    425,645.52x = 587,380.32 × 234,655.08
  4. Step 4: Simplify right side
    425,645.52x = 137,831,775,980.03
  5. Step 5: Solve for x
    x = 137,831,775,980.03/425,645.52
  6. Step 6: Final answer
    x = 323,818.22

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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.