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Finding the Fourth Proportional to 4,679,919.60, 7,019,879.40 and 1,650,705.90

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Solution

The fourth proportional to 4,679,919.60, 7,019,879.40 and 1,650,705.90 is: 2,476,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679,919.60 : 7,019,879.40 = 1,650,705.90 : x
  2. Step 2: Convert to fraction form
    4,679,919.60/7,019,879.40 = 1,650,705.90/x
  3. Step 3: Cross multiply
    4,679,919.60x = 7,019,879.40 × 1,650,705.90
  4. Step 4: Simplify right side
    4,679,919.60x = 11,587,756,342,868.46
  5. Step 5: Solve for x
    x = 11,587,756,342,868.46/4,679,919.60
  6. Step 6: Final answer
    x = 2,476,058.85

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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.