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Finding the Fourth Proportional to 392,601.77, 541,652.46 and 256,715.25

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Solution

The fourth proportional to 392,601.77, 541,652.46 and 256,715.25 is: 354,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,601.77 : 541,652.46 = 256,715.25 : x
  2. Step 2: Convert to fraction form
    392,601.77/541,652.46 = 256,715.25/x
  3. Step 3: Cross multiply
    392,601.77x = 541,652.46 × 256,715.25
  4. Step 4: Simplify right side
    392,601.77x = 139,050,446,682.02
  5. Step 5: Solve for x
    x = 139,050,446,682.02/392,601.77
  6. Step 6: Final answer
    x = 354,176.83

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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.