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Finding the Fourth Proportional to 722,472.91, 996,634.61 and 446,742.61

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Solution

The fourth proportional to 722,472.91, 996,634.61 and 446,742.61 is: 616,271.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,472.91 : 996,634.61 = 446,742.61 : x
  2. Step 2: Convert to fraction form
    722,472.91/996,634.61 = 446,742.61/x
  3. Step 3: Cross multiply
    722,472.91x = 996,634.61 × 446,742.61
  4. Step 4: Simplify right side
    722,472.91x = 445,239,143,837.72
  5. Step 5: Solve for x
    x = 445,239,143,837.72/722,472.91
  6. Step 6: Final answer
    x = 616,271.06

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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.