Home / 928,469.28-1,392,703.92-612,852.38

Finding the Fourth Proportional to 928,469.28, 1,392,703.92 and 612,852.38

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Solution

The fourth proportional to 928,469.28, 1,392,703.92 and 612,852.38 is: 919,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,469.28 : 1,392,703.92 = 612,852.38 : x
  2. Step 2: Convert to fraction form
    928,469.28/1,392,703.92 = 612,852.38/x
  3. Step 3: Cross multiply
    928,469.28x = 1,392,703.92 × 612,852.38
  4. Step 4: Simplify right side
    928,469.28x = 853,521,905,043.81
  5. Step 5: Solve for x
    x = 853,521,905,043.81/928,469.28
  6. Step 6: Final answer
    x = 919,278.56

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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.