Home / 383,016.08-528,170.18-253,909.64

Finding the Fourth Proportional to 383,016.08, 528,170.18 and 253,909.64

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Solution

The fourth proportional to 383,016.08, 528,170.18 and 253,909.64 is: 350,135.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,016.08 : 528,170.18 = 253,909.64 : x
  2. Step 2: Convert to fraction form
    383,016.08/528,170.18 = 253,909.64/x
  3. Step 3: Cross multiply
    383,016.08x = 528,170.18 × 253,909.64
  4. Step 4: Simplify right side
    383,016.08x = 134,107,500,313.41
  5. Step 5: Solve for x
    x = 134,107,500,313.41/383,016.08
  6. Step 6: Final answer
    x = 350,135.43

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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.