Home / 928,553.52-1,392,830.73-612,936.66

Finding the Fourth Proportional to 928,553.52, 1,392,830.73 and 612,936.66

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Solution

The fourth proportional to 928,553.52, 1,392,830.73 and 612,936.66 is: 919,405.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,553.52 : 1,392,830.73 = 612,936.66 : x
  2. Step 2: Convert to fraction form
    928,553.52/1,392,830.73 = 612,936.66/x
  3. Step 3: Cross multiply
    928,553.52x = 1,392,830.73 × 612,936.66
  4. Step 4: Simplify right side
    928,553.52x = 853,717,015,591.56
  5. Step 5: Solve for x
    x = 853,717,015,591.56/928,553.52
  6. Step 6: Final answer
    x = 919,405.29

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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.