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Finding the Fourth Proportional to 406,624.76, 561,156.66 and 245,448.33

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Solution

The fourth proportional to 406,624.76, 561,156.66 and 245,448.33 is: 338,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,624.76 : 561,156.66 = 245,448.33 : x
  2. Step 2: Convert to fraction form
    406,624.76/561,156.66 = 245,448.33/x
  3. Step 3: Cross multiply
    406,624.76x = 561,156.66 × 245,448.33
  4. Step 4: Simplify right side
    406,624.76x = 137,734,965,065.38
  5. Step 5: Solve for x
    x = 137,734,965,065.38/406,624.76
  6. Step 6: Final answer
    x = 338,727.44

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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.