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Finding the Fourth Proportional to 496,470.24, 685,146 and 270,124.32

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Solution

The fourth proportional to 496,470.24, 685,146 and 270,124.32 is: 372,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,470.24 : 685,146 = 270,124.32 : x
  2. Step 2: Convert to fraction form
    496,470.24/685,146 = 270,124.32/x
  3. Step 3: Cross multiply
    496,470.24x = 685,146 × 270,124.32
  4. Step 4: Simplify right side
    496,470.24x = 185,074,597,350.72
  5. Step 5: Solve for x
    x = 185,074,597,350.72/496,470.24
  6. Step 6: Final answer
    x = 372,780.85

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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.