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Finding the Fourth Proportional to 757,554, 1,045,446.39 and 418,044.12

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Solution

The fourth proportional to 757,554, 1,045,446.39 and 418,044.12 is: 576,912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,554 : 1,045,446.39 = 418,044.12 : x
  2. Step 2: Convert to fraction form
    757,554/1,045,446.39 = 418,044.12/x
  3. Step 3: Cross multiply
    757,554x = 1,045,446.39 × 418,044.12
  4. Step 4: Simplify right side
    757,554x = 437,042,716,114.73
  5. Step 5: Solve for x
    x = 437,042,716,114.73/757,554
  6. Step 6: Final answer
    x = 576,912.95

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1.5x scale

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.