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Finding the Fourth Proportional to 3,499,339.88, 5,249,009.88 and 839,947.88

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Solution

The fourth proportional to 3,499,339.88, 5,249,009.88 and 839,947.88 is: 1,259,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,499,339.88 : 5,249,009.88 = 839,947.88 : x
  2. Step 2: Convert to fraction form
    3,499,339.88/5,249,009.88 = 839,947.88/x
  3. Step 3: Cross multiply
    3,499,339.88x = 5,249,009.88 × 839,947.88
  4. Step 4: Simplify right side
    3,499,339.88x = 4,408,894,720,805.06
  5. Step 5: Solve for x
    x = 4,408,894,720,805.06/3,499,339.88
  6. Step 6: Final answer
    x = 1,259,921.83

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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.