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Finding the Fourth Proportional to 611,469.22, 843,905.39 and 369,753.53

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Solution

The fourth proportional to 611,469.22, 843,905.39 and 369,753.53 is: 510,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,469.22 : 843,905.39 = 369,753.53 : x
  2. Step 2: Convert to fraction form
    611,469.22/843,905.39 = 369,753.53/x
  3. Step 3: Cross multiply
    611,469.22x = 843,905.39 × 369,753.53
  4. Step 4: Simplify right side
    611,469.22x = 312,036,990,870.23
  5. Step 5: Solve for x
    x = 312,036,990,870.23/611,469.22
  6. Step 6: Final answer
    x = 510,306.95

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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.