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Finding the Fourth Proportional to 404,756.43, 558,564.66 and 223,468.71

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Solution

The fourth proportional to 404,756.43, 558,564.66 and 223,468.71 is: 308,387.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,756.43 : 558,564.66 = 223,468.71 : x
  2. Step 2: Convert to fraction form
    404,756.43/558,564.66 = 223,468.71/x
  3. Step 3: Cross multiply
    404,756.43x = 558,564.66 × 223,468.71
  4. Step 4: Simplify right side
    404,756.43x = 124,821,724,021.79
  5. Step 5: Solve for x
    x = 124,821,724,021.79/404,756.43
  6. Step 6: Final answer
    x = 308,387.25

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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.