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Finding the Fourth Proportional to 449,601.40, 674,402.10 and 349,218.10

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Solution

The fourth proportional to 449,601.40, 674,402.10 and 349,218.10 is: 523,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,601.40 : 674,402.10 = 349,218.10 : x
  2. Step 2: Convert to fraction form
    449,601.40/674,402.10 = 349,218.10/x
  3. Step 3: Cross multiply
    449,601.40x = 674,402.10 × 349,218.10
  4. Step 4: Simplify right side
    449,601.40x = 235,513,419,998.01
  5. Step 5: Solve for x
    x = 235,513,419,998.01/449,601.40
  6. Step 6: Final answer
    x = 523,827.15

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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.