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Finding the Fourth Proportional to 497,813.40, 746,722.80 and 123,836.40

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Solution

The fourth proportional to 497,813.40, 746,722.80 and 123,836.40 is: 185,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,813.40 : 746,722.80 = 123,836.40 : x
  2. Step 2: Convert to fraction form
    497,813.40/746,722.80 = 123,836.40/x
  3. Step 3: Cross multiply
    497,813.40x = 746,722.80 × 123,836.40
  4. Step 4: Simplify right side
    497,813.40x = 92,471,463,349.92
  5. Step 5: Solve for x
    x = 92,471,463,349.92/497,813.40
  6. Step 6: Final answer
    x = 185,755.27

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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.