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Finding the Fourth Proportional to 1,297,934.92, 1,947,400.86 and 914,052.16

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Solution

The fourth proportional to 1,297,934.92, 1,947,400.86 and 914,052.16 is: 1,371,429.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,934.92 : 1,947,400.86 = 914,052.16 : x
  2. Step 2: Convert to fraction form
    1,297,934.92/1,947,400.86 = 914,052.16/x
  3. Step 3: Cross multiply
    1,297,934.92x = 1,947,400.86 × 914,052.16
  4. Step 4: Simplify right side
    1,297,934.92x = 1,780,025,962,468.86
  5. Step 5: Solve for x
    x = 1,780,025,962,468.86/1,297,934.92
  6. Step 6: Final answer
    x = 1,371,429.29

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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.