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Finding the Fourth Proportional to 350,846.67, 484,389.80 and 243,379.11

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Solution

The fourth proportional to 350,846.67, 484,389.80 and 243,379.11 is: 336,016.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,846.67 : 484,389.80 = 243,379.11 : x
  2. Step 2: Convert to fraction form
    350,846.67/484,389.80 = 243,379.11/x
  3. Step 3: Cross multiply
    350,846.67x = 484,389.80 × 243,379.11
  4. Step 4: Simplify right side
    350,846.67x = 117,890,357,200.18
  5. Step 5: Solve for x
    x = 117,890,357,200.18/350,846.67
  6. Step 6: Final answer
    x = 336,016.75

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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.