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Finding the Fourth Proportional to 406,338.88, 609,530.19 and 169,443.04

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Solution

The fourth proportional to 406,338.88, 609,530.19 and 169,443.04 is: 254,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,338.88 : 609,530.19 = 169,443.04 : x
  2. Step 2: Convert to fraction form
    406,338.88/609,530.19 = 169,443.04/x
  3. Step 3: Cross multiply
    406,338.88x = 609,530.19 × 169,443.04
  4. Step 4: Simplify right side
    406,338.88x = 103,280,648,365.38
  5. Step 5: Solve for x
    x = 103,280,648,365.38/406,338.88
  6. Step 6: Final answer
    x = 254,173.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.