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Finding the Fourth Proportional to 2,798,716.80, 4,191,854.40 and 2,798,716.80

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Solution

The fourth proportional to 2,798,716.80, 4,191,854.40 and 2,798,716.80 is: 4,191,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798,716.80 : 4,191,854.40 = 2,798,716.80 : x
  2. Step 2: Convert to fraction form
    2,798,716.80/4,191,854.40 = 2,798,716.80/x
  3. Step 3: Cross multiply
    2,798,716.80x = 4,191,854.40 × 2,798,716.80
  4. Step 4: Simplify right side
    2,798,716.80x = 11,731,813,332,433.92
  5. Step 5: Solve for x
    x = 11,731,813,332,433.92/2,798,716.80
  6. Step 6: Final answer
    x = 4,191,854.40

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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.