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Finding the Fourth Proportional to 1,295,165.80, 1,942,748.70 and 822,773.80

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Solution

The fourth proportional to 1,295,165.80, 1,942,748.70 and 822,773.80 is: 1,234,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,165.80 : 1,942,748.70 = 822,773.80 : x
  2. Step 2: Convert to fraction form
    1,295,165.80/1,942,748.70 = 822,773.80/x
  3. Step 3: Cross multiply
    1,295,165.80x = 1,942,748.70 × 822,773.80
  4. Step 4: Simplify right side
    1,295,165.80x = 1,598,442,730,344.06
  5. Step 5: Solve for x
    x = 1,598,442,730,344.06/1,295,165.80
  6. Step 6: Final answer
    x = 1,234,160.70

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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.