Home / 928,700.06-1,281,620.76-520,892.60

Finding the Fourth Proportional to 928,700.06, 1,281,620.76 and 520,892.60

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Solution

The fourth proportional to 928,700.06, 1,281,620.76 and 520,892.60 is: 718,840.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,700.06 : 1,281,620.76 = 520,892.60 : x
  2. Step 2: Convert to fraction form
    928,700.06/1,281,620.76 = 520,892.60/x
  3. Step 3: Cross multiply
    928,700.06x = 1,281,620.76 × 520,892.60
  4. Step 4: Simplify right side
    928,700.06x = 667,586,769,890.38
  5. Step 5: Solve for x
    x = 667,586,769,890.38/928,700.06
  6. Step 6: Final answer
    x = 718,840.02

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.