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Finding the Fourth Proportional to 5,265,540, 7,898,310 and 1,276,452

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Solution

The fourth proportional to 5,265,540, 7,898,310 and 1,276,452 is: 1,914,678

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265,540 : 7,898,310 = 1,276,452 : x
  2. Step 2: Convert to fraction form
    5,265,540/7,898,310 = 1,276,452/x
  3. Step 3: Cross multiply
    5,265,540x = 7,898,310 × 1,276,452
  4. Step 4: Simplify right side
    5,265,540x = 10,081,813,596,120
  5. Step 5: Solve for x
    x = 10,081,813,596,120/5,265,540
  6. Step 6: Final answer
    x = 1,914,678

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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.