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Finding the Fourth Proportional to 3,897,357.47, 5,845,660.32 and 1,200,958.70

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Solution

The fourth proportional to 3,897,357.47, 5,845,660.32 and 1,200,958.70 is: 1,801,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897,357.47 : 5,845,660.32 = 1,200,958.70 : x
  2. Step 2: Convert to fraction form
    3,897,357.47/5,845,660.32 = 1,200,958.70/x
  3. Step 3: Cross multiply
    3,897,357.47x = 5,845,660.32 × 1,200,958.70
  4. Step 4: Simplify right side
    3,897,357.47x = 7,020,396,623,328.22
  5. Step 5: Solve for x
    x = 7,020,396,623,328.22/3,897,357.47
  6. Step 6: Final answer
    x = 1,801,322.22

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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.