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Finding the Fourth Proportional to 611,838.25, 844,360.57 and 418,650.97

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Solution

The fourth proportional to 611,838.25, 844,360.57 and 418,650.97 is: 577,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,838.25 : 844,360.57 = 418,650.97 : x
  2. Step 2: Convert to fraction form
    611,838.25/844,360.57 = 418,650.97/x
  3. Step 3: Cross multiply
    611,838.25x = 844,360.57 × 418,650.97
  4. Step 4: Simplify right side
    611,838.25x = 353,492,371,660.25
  5. Step 5: Solve for x
    x = 353,492,371,660.25/611,838.25
  6. Step 6: Final answer
    x = 577,754.61

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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.