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Finding the Fourth Proportional to 401,591.93, 554,191.71 and 229,507.97

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Solution

The fourth proportional to 401,591.93, 554,191.71 and 229,507.97 is: 316,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,591.93 : 554,191.71 = 229,507.97 : x
  2. Step 2: Convert to fraction form
    401,591.93/554,191.71 = 229,507.97/x
  3. Step 3: Cross multiply
    401,591.93x = 554,191.71 × 229,507.97
  4. Step 4: Simplify right side
    401,591.93x = 127,191,414,352.93
  5. Step 5: Solve for x
    x = 127,191,414,352.93/401,591.93
  6. Step 6: Final answer
    x = 316,718.05

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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.