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Finding the Fourth Proportional to 404,473.05, 558,172.15 and 223,184.84

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Solution

The fourth proportional to 404,473.05, 558,172.15 and 223,184.84 is: 307,994.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,473.05 : 558,172.15 = 223,184.84 : x
  2. Step 2: Convert to fraction form
    404,473.05/558,172.15 = 223,184.84/x
  3. Step 3: Cross multiply
    404,473.05x = 558,172.15 × 223,184.84
  4. Step 4: Simplify right side
    404,473.05x = 124,575,558,641.38
  5. Step 5: Solve for x
    x = 124,575,558,641.38/404,473.05
  6. Step 6: Final answer
    x = 307,994.71

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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.