Home / 928,471.53-1,392,707.30-612,854.63

Finding the Fourth Proportional to 928,471.53, 1,392,707.30 and 612,854.63

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Solution

The fourth proportional to 928,471.53, 1,392,707.30 and 612,854.63 is: 919,281.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,471.53 : 1,392,707.30 = 612,854.63 : x
  2. Step 2: Convert to fraction form
    928,471.53/1,392,707.30 = 612,854.63/x
  3. Step 3: Cross multiply
    928,471.53x = 1,392,707.30 × 612,854.63
  4. Step 4: Simplify right side
    928,471.53x = 853,527,107,011.99
  5. Step 5: Solve for x
    x = 853,527,107,011.99/928,471.53
  6. Step 6: Final answer
    x = 919,281.94

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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.