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Finding the Fourth Proportional to 1,784,973.90, 2,463,306.78 and 969,211.97

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Solution

The fourth proportional to 1,784,973.90, 2,463,306.78 and 969,211.97 is: 1,337,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784,973.90 : 2,463,306.78 = 969,211.97 : x
  2. Step 2: Convert to fraction form
    1,784,973.90/2,463,306.78 = 969,211.97/x
  3. Step 3: Cross multiply
    1,784,973.90x = 2,463,306.78 × 969,211.97
  4. Step 4: Simplify right side
    1,784,973.90x = 2,387,466,404,641.62
  5. Step 5: Solve for x
    x = 2,387,466,404,641.62/1,784,973.90
  6. Step 6: Final answer
    x = 1,337,535.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.