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Finding the Fourth Proportional to 1,786,342.62, 2,676,393.80 and 1,488,735.66

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Solution

The fourth proportional to 1,786,342.62, 2,676,393.80 and 1,488,735.66 is: 2,230,503.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,342.62 : 2,676,393.80 = 1,488,735.66 : x
  2. Step 2: Convert to fraction form
    1,786,342.62/2,676,393.80 = 1,488,735.66/x
  3. Step 3: Cross multiply
    1,786,342.62x = 2,676,393.80 × 1,488,735.66
  4. Step 4: Simplify right side
    1,786,342.62x = 3,984,442,890,262.91
  5. Step 5: Solve for x
    x = 3,984,442,890,262.91/1,786,342.62
  6. Step 6: Final answer
    x = 2,230,503.18

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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.