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Finding the Fourth Proportional to 452,892.94, 679,217.91 and 215,763.82

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Solution

The fourth proportional to 452,892.94, 679,217.91 and 215,763.82 is: 323,587.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,892.94 : 679,217.91 = 215,763.82 : x
  2. Step 2: Convert to fraction form
    452,892.94/679,217.91 = 215,763.82/x
  3. Step 3: Cross multiply
    452,892.94x = 679,217.91 × 215,763.82
  4. Step 4: Simplify right side
    452,892.94x = 146,550,650,874.02
  5. Step 5: Solve for x
    x = 146,550,650,874.02/452,892.94
  6. Step 6: Final answer
    x = 323,587.85

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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.