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Finding the Fourth Proportional to 255,016.32, 351,713.16 and 226,356.90

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Solution

The fourth proportional to 255,016.32, 351,713.16 and 226,356.90 is: 312,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,016.32 : 351,713.16 = 226,356.90 : x
  2. Step 2: Convert to fraction form
    255,016.32/351,713.16 = 226,356.90/x
  3. Step 3: Cross multiply
    255,016.32x = 351,713.16 × 226,356.90
  4. Step 4: Simplify right side
    255,016.32x = 79,612,700,586.80
  5. Step 5: Solve for x
    x = 79,612,700,586.80/255,016.32
  6. Step 6: Final answer
    x = 312,186.69

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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.