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Finding the Fourth Proportional to 404,637.12, 558,396.15 and 223,349.03

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Solution

The fourth proportional to 404,637.12, 558,396.15 and 223,349.03 is: 308,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,637.12 : 558,396.15 = 223,349.03 : x
  2. Step 2: Convert to fraction form
    404,637.12/558,396.15 = 223,349.03/x
  3. Step 3: Cross multiply
    404,637.12x = 558,396.15 × 223,349.03
  4. Step 4: Simplify right side
    404,637.12x = 124,717,236,922.68
  5. Step 5: Solve for x
    x = 124,717,236,922.68/404,637.12
  6. Step 6: Final answer
    x = 308,219.96

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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.