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Finding the Fourth Proportional to 425,635.12, 587,380.40 and 234,655.35

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Solution

The fourth proportional to 425,635.12, 587,380.40 and 234,655.35 is: 323,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,635.12 : 587,380.40 = 234,655.35 : x
  2. Step 2: Convert to fraction form
    425,635.12/587,380.40 = 234,655.35/x
  3. Step 3: Cross multiply
    425,635.12x = 587,380.40 × 234,655.35
  4. Step 4: Simplify right side
    425,635.12x = 137,831,953,345.14
  5. Step 5: Solve for x
    x = 137,831,953,345.14/425,635.12
  6. Step 6: Final answer
    x = 323,826.55

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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.