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Finding the Fourth Proportional to 404,903.60, 558,771.17 and 223,620.13

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Solution

The fourth proportional to 404,903.60, 558,771.17 and 223,620.13 is: 308,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,903.60 : 558,771.17 = 223,620.13 : x
  2. Step 2: Convert to fraction form
    404,903.60/558,771.17 = 223,620.13/x
  3. Step 3: Cross multiply
    404,903.60x = 558,771.17 × 223,620.13
  4. Step 4: Simplify right side
    404,903.60x = 124,952,481,675.65
  5. Step 5: Solve for x
    x = 124,952,481,675.65/404,903.60
  6. Step 6: Final answer
    x = 308,598.10

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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.