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Finding the Fourth Proportional to 404,538.30, 558,265.23 and 223,254.90

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Solution

The fourth proportional to 404,538.30, 558,265.23 and 223,254.90 is: 308,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,538.30 : 558,265.23 = 223,254.90 : x
  2. Step 2: Convert to fraction form
    404,538.30/558,265.23 = 223,254.90/x
  3. Step 3: Cross multiply
    404,538.30x = 558,265.23 × 223,254.90
  4. Step 4: Simplify right side
    404,538.30x = 124,635,448,097.13
  5. Step 5: Solve for x
    x = 124,635,448,097.13/404,538.30
  6. Step 6: Final answer
    x = 308,093.07

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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.