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Finding the Fourth Proportional to 876,167.80, 1,314,251.70 and 699,020.80

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Solution

The fourth proportional to 876,167.80, 1,314,251.70 and 699,020.80 is: 1,048,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,167.80 : 1,314,251.70 = 699,020.80 : x
  2. Step 2: Convert to fraction form
    876,167.80/1,314,251.70 = 699,020.80/x
  3. Step 3: Cross multiply
    876,167.80x = 1,314,251.70 × 699,020.80
  4. Step 4: Simplify right side
    876,167.80x = 918,689,274,735.36
  5. Step 5: Solve for x
    x = 918,689,274,735.36/876,167.80
  6. Step 6: Final answer
    x = 1,048,531.20

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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.