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Finding the Fourth Proportional to 6,339,848.70, 9,509,773.05 and 4,203,003.90

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Solution

The fourth proportional to 6,339,848.70, 9,509,773.05 and 4,203,003.90 is: 6,304,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339,848.70 : 9,509,773.05 = 4,203,003.90 : x
  2. Step 2: Convert to fraction form
    6,339,848.70/9,509,773.05 = 4,203,003.90/x
  3. Step 3: Cross multiply
    6,339,848.70x = 9,509,773.05 × 4,203,003.90
  4. Step 4: Simplify right side
    6,339,848.70x = 39,969,613,217,264.90
  5. Step 5: Solve for x
    x = 39,969,613,217,264.90/6,339,848.70
  6. Step 6: Final answer
    x = 6,304,505.85

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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.