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Finding the Fourth Proportional to 543,263.97, 815,040.87 and 188,277.69

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Solution

The fourth proportional to 543,263.97, 815,040.87 and 188,277.69 is: 282,466.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,263.97 : 815,040.87 = 188,277.69 : x
  2. Step 2: Convert to fraction form
    543,263.97/815,040.87 = 188,277.69/x
  3. Step 3: Cross multiply
    543,263.97x = 815,040.87 × 188,277.69
  4. Step 4: Simplify right side
    543,263.97x = 153,454,012,259.19
  5. Step 5: Solve for x
    x = 153,454,012,259.19/543,263.97
  6. Step 6: Final answer
    x = 282,466.76

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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.