Home / 928,440.25-1,392,660.39-612,823.34

Finding the Fourth Proportional to 928,440.25, 1,392,660.39 and 612,823.34

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Solution

The fourth proportional to 928,440.25, 1,392,660.39 and 612,823.34 is: 919,235.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,440.25 : 1,392,660.39 = 612,823.34 : x
  2. Step 2: Convert to fraction form
    928,440.25/1,392,660.39 = 612,823.34/x
  3. Step 3: Cross multiply
    928,440.25x = 1,392,660.39 × 612,823.34
  4. Step 4: Simplify right side
    928,440.25x = 853,454,791,685.50
  5. Step 5: Solve for x
    x = 853,454,791,685.50/928,440.25
  6. Step 6: Final answer
    x = 919,235.02

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Double scale
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Similar ratio
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1.5x scale

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.