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Finding the Fourth Proportional to 3,976,254, 5,964,381 and 984,438

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Solution

The fourth proportional to 3,976,254, 5,964,381 and 984,438 is: 1,476,657

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976,254 : 5,964,381 = 984,438 : x
  2. Step 2: Convert to fraction form
    3,976,254/5,964,381 = 984,438/x
  3. Step 3: Cross multiply
    3,976,254x = 5,964,381 × 984,438
  4. Step 4: Simplify right side
    3,976,254x = 5,871,563,302,878
  5. Step 5: Solve for x
    x = 5,871,563,302,878/3,976,254
  6. Step 6: Final answer
    x = 1,476,657

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.