Home / 928,697.06-1,281,616.62-520,889.60

Finding the Fourth Proportional to 928,697.06, 1,281,616.62 and 520,889.60

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Solution

The fourth proportional to 928,697.06, 1,281,616.62 and 520,889.60 is: 718,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,697.06 : 1,281,616.62 = 520,889.60 : x
  2. Step 2: Convert to fraction form
    928,697.06/1,281,616.62 = 520,889.60/x
  3. Step 3: Cross multiply
    928,697.06x = 1,281,616.62 × 520,889.60
  4. Step 4: Simplify right side
    928,697.06x = 667,580,768,545.15
  5. Step 5: Solve for x
    x = 667,580,768,545.15/928,697.06
  6. Step 6: Final answer
    x = 718,835.88

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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.