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Finding the Fourth Proportional to 404,552.88, 558,314.64 and 223,300.80

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Solution

The fourth proportional to 404,552.88, 558,314.64 and 223,300.80 is: 308,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,552.88 : 558,314.64 = 223,300.80 : x
  2. Step 2: Convert to fraction form
    404,552.88/558,314.64 = 223,300.80/x
  3. Step 3: Cross multiply
    404,552.88x = 558,314.64 × 223,300.80
  4. Step 4: Simplify right side
    404,552.88x = 124,672,105,763.71
  5. Step 5: Solve for x
    x = 124,672,105,763.71/404,552.88
  6. Step 6: Final answer
    x = 308,172.58

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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.