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Finding the Fourth Proportional to 3,971,679.60, 5,954,603.40 and 1,574,338.80

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Solution

The fourth proportional to 3,971,679.60, 5,954,603.40 and 1,574,338.80 is: 2,360,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971,679.60 : 5,954,603.40 = 1,574,338.80 : x
  2. Step 2: Convert to fraction form
    3,971,679.60/5,954,603.40 = 1,574,338.80/x
  3. Step 3: Cross multiply
    3,971,679.60x = 5,954,603.40 × 1,574,338.80
  4. Step 4: Simplify right side
    3,971,679.60x = 9,374,563,171,231.92
  5. Step 5: Solve for x
    x = 9,374,563,171,231.92/3,971,679.60
  6. Step 6: Final answer
    x = 2,360,352.32

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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.