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Finding the Fourth Proportional to 3,787,488.40, 5,678,467.80 and 1,542,470.80

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Solution

The fourth proportional to 3,787,488.40, 5,678,467.80 and 1,542,470.80 is: 2,312,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787,488.40 : 5,678,467.80 = 1,542,470.80 : x
  2. Step 2: Convert to fraction form
    3,787,488.40/5,678,467.80 = 1,542,470.80/x
  3. Step 3: Cross multiply
    3,787,488.40x = 5,678,467.80 × 1,542,470.80
  4. Step 4: Simplify right side
    3,787,488.40x = 8,758,870,770,240.24
  5. Step 5: Solve for x
    x = 8,758,870,770,240.24/3,787,488.40
  6. Step 6: Final answer
    x = 2,312,580.22

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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.