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Finding the Fourth Proportional to 5,666,450.30, 7,819,978.67 and 3,186,451.53

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Solution

The fourth proportional to 5,666,450.30, 7,819,978.67 and 3,186,451.53 is: 4,397,459.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666,450.30 : 7,819,978.67 = 3,186,451.53 : x
  2. Step 2: Convert to fraction form
    5,666,450.30/7,819,978.67 = 3,186,451.53/x
  3. Step 3: Cross multiply
    5,666,450.30x = 7,819,978.67 × 3,186,451.53
  4. Step 4: Simplify right side
    5,666,450.30x = 24,917,982,981,656.61
  5. Step 5: Solve for x
    x = 24,917,982,981,656.61/5,666,450.30
  6. Step 6: Final answer
    x = 4,397,459.02

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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.