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Finding the Fourth Proportional to 911,073.40, 1,366,610.10 and 867,527.80

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Solution

The fourth proportional to 911,073.40, 1,366,610.10 and 867,527.80 is: 1,301,291.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,073.40 : 1,366,610.10 = 867,527.80 : x
  2. Step 2: Convert to fraction form
    911,073.40/1,366,610.10 = 867,527.80/x
  3. Step 3: Cross multiply
    911,073.40x = 1,366,610.10 × 867,527.80
  4. Step 4: Simplify right side
    911,073.40x = 1,185,572,253,510.78
  5. Step 5: Solve for x
    x = 1,185,572,253,510.78/911,073.40
  6. Step 6: Final answer
    x = 1,301,291.70

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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.