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Finding the Fourth Proportional to 587,580.49, 811,318.17 and 451,399.60

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Solution

The fourth proportional to 587,580.49, 811,318.17 and 451,399.60 is: 623,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,580.49 : 811,318.17 = 451,399.60 : x
  2. Step 2: Convert to fraction form
    587,580.49/811,318.17 = 451,399.60/x
  3. Step 3: Cross multiply
    587,580.49x = 811,318.17 × 451,399.60
  4. Step 4: Simplify right side
    587,580.49x = 366,228,697,410.73
  5. Step 5: Solve for x
    x = 366,228,697,410.73/587,580.49
  6. Step 6: Final answer
    x = 623,282.60

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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.