Home / 928,472.28-1,392,708.42-612,855.38

Finding the Fourth Proportional to 928,472.28, 1,392,708.42 and 612,855.38

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Solution

The fourth proportional to 928,472.28, 1,392,708.42 and 612,855.38 is: 919,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,472.28 : 1,392,708.42 = 612,855.38 : x
  2. Step 2: Convert to fraction form
    928,472.28/1,392,708.42 = 612,855.38/x
  3. Step 3: Cross multiply
    928,472.28x = 1,392,708.42 × 612,855.38
  4. Step 4: Simplify right side
    928,472.28x = 853,528,841,004.76
  5. Step 5: Solve for x
    x = 853,528,841,004.76/928,472.28
  6. Step 6: Final answer
    x = 919,283.06

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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.