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Finding the Fourth Proportional to 1,093,506.60, 1,640,259.90 and 827,786.10

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Solution

The fourth proportional to 1,093,506.60, 1,640,259.90 and 827,786.10 is: 1,241,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,506.60 : 1,640,259.90 = 827,786.10 : x
  2. Step 2: Convert to fraction form
    1,093,506.60/1,640,259.90 = 827,786.10/x
  3. Step 3: Cross multiply
    1,093,506.60x = 1,640,259.90 × 827,786.10
  4. Step 4: Simplify right side
    1,093,506.60x = 1,357,784,345,607.39
  5. Step 5: Solve for x
    x = 1,357,784,345,607.39/1,093,506.60
  6. Step 6: Final answer
    x = 1,241,679.15

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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.