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Finding the Fourth Proportional to 6,499,959.21, 8,972,840.61 and 4,296,149.38

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Solution

The fourth proportional to 6,499,959.21, 8,972,840.61 and 4,296,149.38 is: 5,930,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,499,959.21 : 8,972,840.61 = 4,296,149.38 : x
  2. Step 2: Convert to fraction form
    6,499,959.21/8,972,840.61 = 4,296,149.38/x
  3. Step 3: Cross multiply
    6,499,959.21x = 8,972,840.61 × 4,296,149.38
  4. Step 4: Simplify right side
    6,499,959.21x = 38,548,663,634,706.37
  5. Step 5: Solve for x
    x = 38,548,663,634,706.37/6,499,959.21
  6. Step 6: Final answer
    x = 5,930,600.85

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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.