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Finding the Fourth Proportional to 926,956.20, 1,391,471.10 and 866,044.20

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Solution

The fourth proportional to 926,956.20, 1,391,471.10 and 866,044.20 is: 1,300,034.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,956.20 : 1,391,471.10 = 866,044.20 : x
  2. Step 2: Convert to fraction form
    926,956.20/1,391,471.10 = 866,044.20/x
  3. Step 3: Cross multiply
    926,956.20x = 1,391,471.10 × 866,044.20
  4. Step 4: Simplify right side
    926,956.20x = 1,205,075,475,622.62
  5. Step 5: Solve for x
    x = 1,205,075,475,622.62/926,956.20
  6. Step 6: Final answer
    x = 1,300,034.97

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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.