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Finding the Fourth Proportional to 6,108,678.90, 8,429,745.90 and 3,392,599.86

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Solution

The fourth proportional to 6,108,678.90, 8,429,745.90 and 3,392,599.86 is: 4,681,659.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,108,678.90 : 8,429,745.90 = 3,392,599.86 : x
  2. Step 2: Convert to fraction form
    6,108,678.90/8,429,745.90 = 3,392,599.86/x
  3. Step 3: Cross multiply
    6,108,678.90x = 8,429,745.90 × 3,392,599.86
  4. Step 4: Simplify right side
    6,108,678.90x = 28,598,754,760,175.57
  5. Step 5: Solve for x
    x = 28,598,754,760,175.57/6,108,678.90
  6. Step 6: Final answer
    x = 4,681,659.53

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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.