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Finding the Fourth Proportional to 1,382,524, 1,907,883.20 and 746,620

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Solution

The fourth proportional to 1,382,524, 1,907,883.20 and 746,620 is: 1,030,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,524 : 1,907,883.20 = 746,620 : x
  2. Step 2: Convert to fraction form
    1,382,524/1,907,883.20 = 746,620/x
  3. Step 3: Cross multiply
    1,382,524x = 1,907,883.20 × 746,620
  4. Step 4: Simplify right side
    1,382,524x = 1,424,463,754,784
  5. Step 5: Solve for x
    x = 1,424,463,754,784/1,382,524
  6. Step 6: Final answer
    x = 1,030,335.64

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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.