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Finding the Fourth Proportional to 5,887,379.40, 8,835,005.70 and 2,690,860.20

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Solution

The fourth proportional to 5,887,379.40, 8,835,005.70 and 2,690,860.20 is: 4,038,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,887,379.40 : 8,835,005.70 = 2,690,860.20 : x
  2. Step 2: Convert to fraction form
    5,887,379.40/8,835,005.70 = 2,690,860.20/x
  3. Step 3: Cross multiply
    5,887,379.40x = 8,835,005.70 × 2,690,860.20
  4. Step 4: Simplify right side
    5,887,379.40x = 23,773,765,204,903.14
  5. Step 5: Solve for x
    x = 23,773,765,204,903.14/5,887,379.40
  6. Step 6: Final answer
    x = 4,038,089.55

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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.