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Finding the Fourth Proportional to 406,216.62, 560,647.17 and 236,550.78

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Solution

The fourth proportional to 406,216.62, 560,647.17 and 236,550.78 is: 326,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,216.62 : 560,647.17 = 236,550.78 : x
  2. Step 2: Convert to fraction form
    406,216.62/560,647.17 = 236,550.78/x
  3. Step 3: Cross multiply
    406,216.62x = 560,647.17 × 236,550.78
  4. Step 4: Simplify right side
    406,216.62x = 132,621,525,368.29
  5. Step 5: Solve for x
    x = 132,621,525,368.29/406,216.62
  6. Step 6: Final answer
    x = 326,479.81

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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.