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Finding the Fourth Proportional to 1,015,776, 1,401,819.48 and 563,067

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Solution

The fourth proportional to 1,015,776, 1,401,819.48 and 563,067 is: 777,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,776 : 1,401,819.48 = 563,067 : x
  2. Step 2: Convert to fraction form
    1,015,776/1,401,819.48 = 563,067/x
  3. Step 3: Cross multiply
    1,015,776x = 1,401,819.48 × 563,067
  4. Step 4: Simplify right side
    1,015,776x = 789,318,289,145.16
  5. Step 5: Solve for x
    x = 789,318,289,145.16/1,015,776
  6. Step 6: Final answer
    x = 777,059.40

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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.