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Finding the Fourth Proportional to 261,251.77, 358,179.22 and 256,527.85

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Solution

The fourth proportional to 261,251.77, 358,179.22 and 256,527.85 is: 351,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,251.77 : 358,179.22 = 256,527.85 : x
  2. Step 2: Convert to fraction form
    261,251.77/358,179.22 = 256,527.85/x
  3. Step 3: Cross multiply
    261,251.77x = 358,179.22 × 256,527.85
  4. Step 4: Simplify right side
    261,251.77x = 91,882,945,221.28
  5. Step 5: Solve for x
    x = 91,882,945,221.28/261,251.77
  6. Step 6: Final answer
    x = 351,702.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.