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Finding the Fourth Proportional to 2,916,962.16, 4,375,443.26 and 787,046.28

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Solution

The fourth proportional to 2,916,962.16, 4,375,443.26 and 787,046.28 is: 1,180,569.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916,962.16 : 4,375,443.26 = 787,046.28 : x
  2. Step 2: Convert to fraction form
    2,916,962.16/4,375,443.26 = 787,046.28/x
  3. Step 3: Cross multiply
    2,916,962.16x = 4,375,443.26 × 787,046.28
  4. Step 4: Simplify right side
    2,916,962.16x = 3,443,676,341,134.07
  5. Step 5: Solve for x
    x = 3,443,676,341,134.07/2,916,962.16
  6. Step 6: Final answer
    x = 1,180,569.43

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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.