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Finding the Fourth Proportional to 591,459.70, 885,634.35 and 432,829.30

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Solution

The fourth proportional to 591,459.70, 885,634.35 and 432,829.30 is: 648,105.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,459.70 : 885,634.35 = 432,829.30 : x
  2. Step 2: Convert to fraction form
    591,459.70/885,634.35 = 432,829.30/x
  3. Step 3: Cross multiply
    591,459.70x = 885,634.35 × 432,829.30
  4. Step 4: Simplify right side
    591,459.70x = 383,328,495,766.46
  5. Step 5: Solve for x
    x = 383,328,495,766.46/591,459.70
  6. Step 6: Final answer
    x = 648,105.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.