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Finding the Fourth Proportional to 468,499.65, 646,521.79 and 253,637.97

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Solution

The fourth proportional to 468,499.65, 646,521.79 and 253,637.97 is: 350,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,499.65 : 646,521.79 = 253,637.97 : x
  2. Step 2: Convert to fraction form
    468,499.65/646,521.79 = 253,637.97/x
  3. Step 3: Cross multiply
    468,499.65x = 646,521.79 × 253,637.97
  4. Step 4: Simplify right side
    468,499.65x = 163,982,474,376.37
  5. Step 5: Solve for x
    x = 163,982,474,376.37/468,499.65
  6. Step 6: Final answer
    x = 350,016.22

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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.