Home / 1,252,863.18-1,728,963.87-679,908.30

Finding the Fourth Proportional to 1,252,863.18, 1,728,963.87 and 679,908.30

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Solution

The fourth proportional to 1,252,863.18, 1,728,963.87 and 679,908.30 is: 938,280.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,863.18 : 1,728,963.87 = 679,908.30 : x
  2. Step 2: Convert to fraction form
    1,252,863.18/1,728,963.87 = 679,908.30/x
  3. Step 3: Cross multiply
    1,252,863.18x = 1,728,963.87 × 679,908.30
  4. Step 4: Simplify right side
    1,252,863.18x = 1,175,536,885,613.12
  5. Step 5: Solve for x
    x = 1,175,536,885,613.12/1,252,863.18
  6. Step 6: Final answer
    x = 938,280.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.