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Finding the Fourth Proportional to 1,834,245.80, 2,752,024.80 and 769,614.20

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Solution

The fourth proportional to 1,834,245.80, 2,752,024.80 and 769,614.20 is: 1,154,696.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834,245.80 : 2,752,024.80 = 769,614.20 : x
  2. Step 2: Convert to fraction form
    1,834,245.80/2,752,024.80 = 769,614.20/x
  3. Step 3: Cross multiply
    1,834,245.80x = 2,752,024.80 × 769,614.20
  4. Step 4: Simplify right side
    1,834,245.80x = 2,117,997,364,832.16
  5. Step 5: Solve for x
    x = 2,117,997,364,832.16/1,834,245.80
  6. Step 6: Final answer
    x = 1,154,696.59

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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.