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Finding the Fourth Proportional to 404,400.66, 558,069.30 and 223,114.20

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Solution

The fourth proportional to 404,400.66, 558,069.30 and 223,114.20 is: 307,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,400.66 : 558,069.30 = 223,114.20 : x
  2. Step 2: Convert to fraction form
    404,400.66/558,069.30 = 223,114.20/x
  3. Step 3: Cross multiply
    404,400.66x = 558,069.30 × 223,114.20
  4. Step 4: Simplify right side
    404,400.66x = 124,513,185,414.06
  5. Step 5: Solve for x
    x = 124,513,185,414.06/404,400.66
  6. Step 6: Final answer
    x = 307,895.60

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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.