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Finding the Fourth Proportional to 442,761.09, 663,285.49 and 370,829.72

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Solution

The fourth proportional to 442,761.09, 663,285.49 and 370,829.72 is: 555,527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,761.09 : 663,285.49 = 370,829.72 : x
  2. Step 2: Convert to fraction form
    442,761.09/663,285.49 = 370,829.72/x
  3. Step 3: Cross multiply
    442,761.09x = 663,285.49 × 370,829.72
  4. Step 4: Simplify right side
    442,761.09x = 245,965,972,536.76
  5. Step 5: Solve for x
    x = 245,965,972,536.76/442,761.09
  6. Step 6: Final answer
    x = 555,527.53

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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.