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Finding the Fourth Proportional to 406,338.69, 560,751.51 and 245,162.58

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Solution

The fourth proportional to 406,338.69, 560,751.51 and 245,162.58 is: 338,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,338.69 : 560,751.51 = 245,162.58 : x
  2. Step 2: Convert to fraction form
    406,338.69/560,751.51 = 245,162.58/x
  3. Step 3: Cross multiply
    406,338.69x = 560,751.51 × 245,162.58
  4. Step 4: Simplify right side
    406,338.69x = 137,475,286,930.50
  5. Step 5: Solve for x
    x = 137,475,286,930.50/406,338.69
  6. Step 6: Final answer
    x = 338,326.84

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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.