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Finding the Fourth Proportional to 496,458.84, 685,116.18 and 270,105.96

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Solution

The fourth proportional to 496,458.84, 685,116.18 and 270,105.96 is: 372,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,458.84 : 685,116.18 = 270,105.96 : x
  2. Step 2: Convert to fraction form
    496,458.84/685,116.18 = 270,105.96/x
  3. Step 3: Cross multiply
    496,458.84x = 685,116.18 × 270,105.96
  4. Step 4: Simplify right side
    496,458.84x = 185,053,963,510.43
  5. Step 5: Solve for x
    x = 185,053,963,510.43/496,458.84
  6. Step 6: Final answer
    x = 372,747.85

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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.