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Finding the Fourth Proportional to 3,581,605.60, 5,372,408.40 and 1,057,256.80

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Solution

The fourth proportional to 3,581,605.60, 5,372,408.40 and 1,057,256.80 is: 1,585,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581,605.60 : 5,372,408.40 = 1,057,256.80 : x
  2. Step 2: Convert to fraction form
    3,581,605.60/5,372,408.40 = 1,057,256.80/x
  3. Step 3: Cross multiply
    3,581,605.60x = 5,372,408.40 × 1,057,256.80
  4. Step 4: Simplify right side
    3,581,605.60x = 5,680,015,313,277.12
  5. Step 5: Solve for x
    x = 5,680,015,313,277.12/3,581,605.60
  6. Step 6: Final answer
    x = 1,585,885.20

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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.