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Finding the Fourth Proportional to 843,379.92, 1,163,891.88 and 461,397.84

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Solution

The fourth proportional to 843,379.92, 1,163,891.88 and 461,397.84 is: 636,744.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,379.92 : 1,163,891.88 = 461,397.84 : x
  2. Step 2: Convert to fraction form
    843,379.92/1,163,891.88 = 461,397.84/x
  3. Step 3: Cross multiply
    843,379.92x = 1,163,891.88 × 461,397.84
  4. Step 4: Simplify right side
    843,379.92x = 537,017,199,425.54
  5. Step 5: Solve for x
    x = 537,017,199,425.54/843,379.92
  6. Step 6: Final answer
    x = 636,744.11

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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.