Home / 612,050.11-844,575.39-340,100.78

Finding the Fourth Proportional to 612,050.11, 844,575.39 and 340,100.78

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Solution

The fourth proportional to 612,050.11, 844,575.39 and 340,100.78 is: 469,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,050.11 : 844,575.39 = 340,100.78 : x
  2. Step 2: Convert to fraction form
    612,050.11/844,575.39 = 340,100.78/x
  3. Step 3: Cross multiply
    612,050.11x = 844,575.39 × 340,100.78
  4. Step 4: Simplify right side
    612,050.11x = 287,240,744,684.93
  5. Step 5: Solve for x
    x = 287,240,744,684.93/612,050.11
  6. Step 6: Final answer
    x = 469,309.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.