Home / 928,517.02-1,392,775.95-612,900.13

Finding the Fourth Proportional to 928,517.02, 1,392,775.95 and 612,900.13

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Solution

The fourth proportional to 928,517.02, 1,392,775.95 and 612,900.13 is: 919,350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,517.02 : 1,392,775.95 = 612,900.13 : x
  2. Step 2: Convert to fraction form
    928,517.02/1,392,775.95 = 612,900.13/x
  3. Step 3: Cross multiply
    928,517.02x = 1,392,775.95 × 612,900.13
  4. Step 4: Simplify right side
    928,517.02x = 853,632,560,815.87
  5. Step 5: Solve for x
    x = 853,632,560,815.87/928,517.02
  6. Step 6: Final answer
    x = 919,350.47

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Half scale
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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.