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Finding the Fourth Proportional to 331,813.40, 497,720.10 and 248,869.40

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Solution

The fourth proportional to 331,813.40, 497,720.10 and 248,869.40 is: 373,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,813.40 : 497,720.10 = 248,869.40 : x
  2. Step 2: Convert to fraction form
    331,813.40/497,720.10 = 248,869.40/x
  3. Step 3: Cross multiply
    331,813.40x = 497,720.10 × 248,869.40
  4. Step 4: Simplify right side
    331,813.40x = 123,867,302,654.94
  5. Step 5: Solve for x
    x = 123,867,302,654.94/331,813.40
  6. Step 6: Final answer
    x = 373,304.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.