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Finding the Fourth Proportional to 4,976,487.92, 7,465,862.72 and 1,518,536.94

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Solution

The fourth proportional to 4,976,487.92, 7,465,862.72 and 1,518,536.94 is: 2,278,150.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976,487.92 : 7,465,862.72 = 1,518,536.94 : x
  2. Step 2: Convert to fraction form
    4,976,487.92/7,465,862.72 = 1,518,536.94/x
  3. Step 3: Cross multiply
    4,976,487.92x = 7,465,862.72 × 1,518,536.94
  4. Step 4: Simplify right side
    4,976,487.92x = 11,337,188,331,028.52
  5. Step 5: Solve for x
    x = 11,337,188,331,028.52/4,976,487.92
  6. Step 6: Final answer
    x = 2,278,150.48

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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.