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Finding the Fourth Proportional to 406,351.91, 560,769.84 and 245,175.81

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Solution

The fourth proportional to 406,351.91, 560,769.84 and 245,175.81 is: 338,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,351.91 : 560,769.84 = 245,175.81 : x
  2. Step 2: Convert to fraction form
    406,351.91/560,769.84 = 245,175.81/x
  3. Step 3: Cross multiply
    406,351.91x = 560,769.84 × 245,175.81
  4. Step 4: Simplify right side
    406,351.91x = 137,487,199,745.57
  5. Step 5: Solve for x
    x = 137,487,199,745.57/406,351.91
  6. Step 6: Final answer
    x = 338,345.15

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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.