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Finding the Fourth Proportional to 1,834,643.10, 2,750,652.45 and 822,936.90

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Solution

The fourth proportional to 1,834,643.10, 2,750,652.45 and 822,936.90 is: 1,233,816.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834,643.10 : 2,750,652.45 = 822,936.90 : x
  2. Step 2: Convert to fraction form
    1,834,643.10/2,750,652.45 = 822,936.90/x
  3. Step 3: Cross multiply
    1,834,643.10x = 2,750,652.45 × 822,936.90
  4. Step 4: Simplify right side
    1,834,643.10x = 2,263,613,400,180.41
  5. Step 5: Solve for x
    x = 2,263,613,400,180.41/1,834,643.10
  6. Step 6: Final answer
    x = 1,233,816.76

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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.