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Finding the Fourth Proportional to 2,650,836, 3,976,254 and 656,292

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Solution

The fourth proportional to 2,650,836, 3,976,254 and 656,292 is: 984,438

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650,836 : 3,976,254 = 656,292 : x
  2. Step 2: Convert to fraction form
    2,650,836/3,976,254 = 656,292/x
  3. Step 3: Cross multiply
    2,650,836x = 3,976,254 × 656,292
  4. Step 4: Simplify right side
    2,650,836x = 2,609,583,690,168
  5. Step 5: Solve for x
    x = 2,609,583,690,168/2,650,836
  6. Step 6: Final answer
    x = 984,438

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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.