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Finding the Fourth Proportional to 543,842.61, 750,170.25 and 322,930.17

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Solution

The fourth proportional to 543,842.61, 750,170.25 and 322,930.17 is: 445,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,842.61 : 750,170.25 = 322,930.17 : x
  2. Step 2: Convert to fraction form
    543,842.61/750,170.25 = 322,930.17/x
  3. Step 3: Cross multiply
    543,842.61x = 750,170.25 × 322,930.17
  4. Step 4: Simplify right side
    543,842.61x = 242,252,606,361.44
  5. Step 5: Solve for x
    x = 242,252,606,361.44/543,842.61
  6. Step 6: Final answer
    x = 445,446.17

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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.