Home / 612,278.38-845,081.27-340,441.57

Finding the Fourth Proportional to 612,278.38, 845,081.27 and 340,441.57

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Solution

The fourth proportional to 612,278.38, 845,081.27 and 340,441.57 is: 469,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,278.38 : 845,081.27 = 340,441.57 : x
  2. Step 2: Convert to fraction form
    612,278.38/845,081.27 = 340,441.57/x
  3. Step 3: Cross multiply
    612,278.38x = 845,081.27 × 340,441.57
  4. Step 4: Simplify right side
    612,278.38x = 287,700,794,336.39
  5. Step 5: Solve for x
    x = 287,700,794,336.39/612,278.38
  6. Step 6: Final answer
    x = 469,885.60

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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.