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Finding the Fourth Proportional to 543,007.76, 749,339.24 and 301,285.13

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Solution

The fourth proportional to 543,007.76, 749,339.24 and 301,285.13 is: 415,767.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,007.76 : 749,339.24 = 301,285.13 : x
  2. Step 2: Convert to fraction form
    543,007.76/749,339.24 = 301,285.13/x
  3. Step 3: Cross multiply
    543,007.76x = 749,339.24 × 301,285.13
  4. Step 4: Simplify right side
    543,007.76x = 225,764,765,084.38
  5. Step 5: Solve for x
    x = 225,764,765,084.38/543,007.76
  6. Step 6: Final answer
    x = 415,767.11

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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.