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Finding the Fourth Proportional to 493,198.19, 680,613.50 and 266,843.69

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Solution

The fourth proportional to 493,198.19, 680,613.50 and 266,843.69 is: 368,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,198.19 : 680,613.50 = 266,843.69 : x
  2. Step 2: Convert to fraction form
    493,198.19/680,613.50 = 266,843.69/x
  3. Step 3: Cross multiply
    493,198.19x = 680,613.50 × 266,843.69
  4. Step 4: Simplify right side
    493,198.19x = 181,617,417,803.82
  5. Step 5: Solve for x
    x = 181,617,417,803.82/493,198.19
  6. Step 6: Final answer
    x = 368,244.29

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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.