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Finding the Fourth Proportional to 3,708,355.20, 5,206,627.20 and 3,708,355.20

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Solution

The fourth proportional to 3,708,355.20, 5,206,627.20 and 3,708,355.20 is: 5,206,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708,355.20 : 5,206,627.20 = 3,708,355.20 : x
  2. Step 2: Convert to fraction form
    3,708,355.20/5,206,627.20 = 3,708,355.20/x
  3. Step 3: Cross multiply
    3,708,355.20x = 5,206,627.20 × 3,708,355.20
  4. Step 4: Simplify right side
    3,708,355.20x = 19,308,023,051,581.44
  5. Step 5: Solve for x
    x = 19,308,023,051,581.44/3,708,355.20
  6. Step 6: Final answer
    x = 5,206,627.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.