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Finding the Fourth Proportional to 3,792,939.60, 5,689,415.16 and 1,549,077.60

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Solution

The fourth proportional to 3,792,939.60, 5,689,415.16 and 1,549,077.60 is: 2,323,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792,939.60 : 5,689,415.16 = 1,549,077.60 : x
  2. Step 2: Convert to fraction form
    3,792,939.60/5,689,415.16 = 1,549,077.60/x
  3. Step 3: Cross multiply
    3,792,939.60x = 5,689,415.16 × 1,549,077.60
  4. Step 4: Simplify right side
    3,792,939.60x = 8,813,345,581,456.42
  5. Step 5: Solve for x
    x = 8,813,345,581,456.42/3,792,939.60
  6. Step 6: Final answer
    x = 2,323,618.75

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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.