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Finding the Fourth Proportional to 406,339.68, 560,752.88 and 245,163.58

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Solution

The fourth proportional to 406,339.68, 560,752.88 and 245,163.58 is: 338,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,339.68 : 560,752.88 = 245,163.58 : x
  2. Step 2: Convert to fraction form
    406,339.68/560,752.88 = 245,163.58/x
  3. Step 3: Cross multiply
    406,339.68x = 560,752.88 × 245,163.58
  4. Step 4: Simplify right side
    406,339.68x = 137,476,183,556.11
  5. Step 5: Solve for x
    x = 137,476,183,556.11/406,339.68
  6. Step 6: Final answer
    x = 338,328.23

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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.