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Finding the Fourth Proportional to 404,646.86, 558,412.68 and 223,358.82

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Solution

The fourth proportional to 404,646.86, 558,412.68 and 223,358.82 is: 308,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,646.86 : 558,412.68 = 223,358.82 : x
  2. Step 2: Convert to fraction form
    404,646.86/558,412.68 = 223,358.82/x
  3. Step 3: Cross multiply
    404,646.86x = 558,412.68 × 223,358.82
  4. Step 4: Simplify right side
    404,646.86x = 124,726,397,277.84
  5. Step 5: Solve for x
    x = 124,726,397,277.84/404,646.86
  6. Step 6: Final answer
    x = 308,235.18

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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.