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Finding the Fourth Proportional to 1,382,893, 1,908,392.34 and 746,989

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Solution

The fourth proportional to 1,382,893, 1,908,392.34 and 746,989 is: 1,030,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,893 : 1,908,392.34 = 746,989 : x
  2. Step 2: Convert to fraction form
    1,382,893/1,908,392.34 = 746,989/x
  3. Step 3: Cross multiply
    1,382,893x = 1,908,392.34 × 746,989
  4. Step 4: Simplify right side
    1,382,893x = 1,425,548,085,664.26
  5. Step 5: Solve for x
    x = 1,425,548,085,664.26/1,382,893
  6. Step 6: Final answer
    x = 1,030,844.82

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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.