Home / 507,216.06-699,979.26-280,861.56

Finding the Fourth Proportional to 507,216.06, 699,979.26 and 280,861.56

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Solution

The fourth proportional to 507,216.06, 699,979.26 and 280,861.56 is: 387,600.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,216.06 : 699,979.26 = 280,861.56 : x
  2. Step 2: Convert to fraction form
    507,216.06/699,979.26 = 280,861.56/x
  3. Step 3: Cross multiply
    507,216.06x = 699,979.26 × 280,861.56
  4. Step 4: Simplify right side
    507,216.06x = 196,597,266,931.25
  5. Step 5: Solve for x
    x = 196,597,266,931.25/507,216.06
  6. Step 6: Final answer
    x = 387,600.63

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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.