Home / 928,449.37-1,392,674.11-612,832.47

Finding the Fourth Proportional to 928,449.37, 1,392,674.11 and 612,832.47

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Solution

The fourth proportional to 928,449.37, 1,392,674.11 and 612,832.47 is: 919,248.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,449.37 : 1,392,674.11 = 612,832.47 : x
  2. Step 2: Convert to fraction form
    928,449.37/1,392,674.11 = 612,832.47/x
  3. Step 3: Cross multiply
    928,449.37x = 1,392,674.11 × 612,832.47
  4. Step 4: Simplify right side
    928,449.37x = 853,475,907,981.74
  5. Step 5: Solve for x
    x = 853,475,907,981.74/928,449.37
  6. Step 6: Final answer
    x = 919,248.73

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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.