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Finding the Fourth Proportional to 1,866,138.12, 2,799,651.39 and 603,965.73

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Solution

The fourth proportional to 1,866,138.12, 2,799,651.39 and 603,965.73 is: 906,092.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,138.12 : 2,799,651.39 = 603,965.73 : x
  2. Step 2: Convert to fraction form
    1,866,138.12/2,799,651.39 = 603,965.73/x
  3. Step 3: Cross multiply
    1,866,138.12x = 2,799,651.39 × 603,965.73
  4. Step 4: Simplify right side
    1,866,138.12x = 1,690,893,495,506.86
  5. Step 5: Solve for x
    x = 1,690,893,495,506.86/1,866,138.12
  6. Step 6: Final answer
    x = 906,092.36

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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.