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Finding the Fourth Proportional to 3,819,558.74, 5,729,339.65 and 940,981.55

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Solution

The fourth proportional to 3,819,558.74, 5,729,339.65 and 940,981.55 is: 1,411,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819,558.74 : 5,729,339.65 = 940,981.55 : x
  2. Step 2: Convert to fraction form
    3,819,558.74/5,729,339.65 = 940,981.55/x
  3. Step 3: Cross multiply
    3,819,558.74x = 5,729,339.65 × 940,981.55
  4. Step 4: Simplify right side
    3,819,558.74x = 5,391,202,885,841.16
  5. Step 5: Solve for x
    x = 5,391,202,885,841.16/3,819,558.74
  6. Step 6: Final answer
    x = 1,411,472.70

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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.