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Finding the Fourth Proportional to 863,114.10, 1,206,785.10 and 863,114.10

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Solution

The fourth proportional to 863,114.10, 1,206,785.10 and 863,114.10 is: 1,206,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,114.10 : 1,206,785.10 = 863,114.10 : x
  2. Step 2: Convert to fraction form
    863,114.10/1,206,785.10 = 863,114.10/x
  3. Step 3: Cross multiply
    863,114.10x = 1,206,785.10 × 863,114.10
  4. Step 4: Simplify right side
    863,114.10x = 1,041,593,235,479.91
  5. Step 5: Solve for x
    x = 1,041,593,235,479.91/863,114.10
  6. Step 6: Final answer
    x = 1,206,785.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.