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Finding the Fourth Proportional to 623,667.10, 860,660.49 and 337,187.20

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Solution

The fourth proportional to 623,667.10, 860,660.49 and 337,187.20 is: 465,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,667.10 : 860,660.49 = 337,187.20 : x
  2. Step 2: Convert to fraction form
    623,667.10/860,660.49 = 337,187.20/x
  3. Step 3: Cross multiply
    623,667.10x = 860,660.49 × 337,187.20
  4. Step 4: Simplify right side
    623,667.10x = 290,203,700,773.73
  5. Step 5: Solve for x
    x = 290,203,700,773.73/623,667.10
  6. Step 6: Final answer
    x = 465,318.28

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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.