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Finding the Fourth Proportional to 3,908,552.80, 5,854,534.80 and 3,245,000.80

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Solution

The fourth proportional to 3,908,552.80, 5,854,534.80 and 3,245,000.80 is: 4,860,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908,552.80 : 5,854,534.80 = 3,245,000.80 : x
  2. Step 2: Convert to fraction form
    3,908,552.80/5,854,534.80 = 3,245,000.80/x
  3. Step 3: Cross multiply
    3,908,552.80x = 5,854,534.80 × 3,245,000.80
  4. Step 4: Simplify right side
    3,908,552.80x = 18,997,970,109,627.84
  5. Step 5: Solve for x
    x = 18,997,970,109,627.84/3,908,552.80
  6. Step 6: Final answer
    x = 4,860,614.93

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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.