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Finding the Fourth Proportional to 404,561.12, 558,275.42 and 232,357.95

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Solution

The fourth proportional to 404,561.12, 558,275.42 and 232,357.95 is: 320,643.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,561.12 : 558,275.42 = 232,357.95 : x
  2. Step 2: Convert to fraction form
    404,561.12/558,275.42 = 232,357.95/x
  3. Step 3: Cross multiply
    404,561.12x = 558,275.42 × 232,357.95
  4. Step 4: Simplify right side
    404,561.12x = 129,719,732,707.48
  5. Step 5: Solve for x
    x = 129,719,732,707.48/404,561.12
  6. Step 6: Final answer
    x = 320,643.11

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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.