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Finding the Fourth Proportional to 397,789.07, 596,703.28 and 113,521.52

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Solution

The fourth proportional to 397,789.07, 596,703.28 and 113,521.52 is: 170,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,789.07 : 596,703.28 = 113,521.52 : x
  2. Step 2: Convert to fraction form
    397,789.07/596,703.28 = 113,521.52/x
  3. Step 3: Cross multiply
    397,789.07x = 596,703.28 × 113,521.52
  4. Step 4: Simplify right side
    397,789.07x = 67,738,662,766.98
  5. Step 5: Solve for x
    x = 67,738,662,766.98/397,789.07
  6. Step 6: Final answer
    x = 170,287.89

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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.