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Finding the Fourth Proportional to 2,648,583.86, 3,972,912.22 and 755,325.50

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Solution

The fourth proportional to 2,648,583.86, 3,972,912.22 and 755,325.50 is: 1,132,998.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648,583.86 : 3,972,912.22 = 755,325.50 : x
  2. Step 2: Convert to fraction form
    2,648,583.86/3,972,912.22 = 755,325.50/x
  3. Step 3: Cross multiply
    2,648,583.86x = 3,972,912.22 × 755,325.50
  4. Step 4: Simplify right side
    2,648,583.86x = 3,000,841,909,027.61
  5. Step 5: Solve for x
    x = 3,000,841,909,027.61/2,648,583.86
  6. Step 6: Final answer
    x = 1,132,998.64

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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.