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Finding the Fourth Proportional to 496,479.38, 685,141.54 and 270,126.50

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Solution

The fourth proportional to 496,479.38, 685,141.54 and 270,126.50 is: 372,774.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,479.38 : 685,141.54 = 270,126.50 : x
  2. Step 2: Convert to fraction form
    496,479.38/685,141.54 = 270,126.50/x
  3. Step 3: Cross multiply
    496,479.38x = 685,141.54 × 270,126.50
  4. Step 4: Simplify right side
    496,479.38x = 185,074,882,103.79
  5. Step 5: Solve for x
    x = 185,074,882,103.79/496,479.38
  6. Step 6: Final answer
    x = 372,774.56

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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.