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Finding the Fourth Proportional to 933,640.80, 1,400,266.80 and 401,179.20

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Solution

The fourth proportional to 933,640.80, 1,400,266.80 and 401,179.20 is: 601,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,640.80 : 1,400,266.80 = 401,179.20 : x
  2. Step 2: Convert to fraction form
    933,640.80/1,400,266.80 = 401,179.20/x
  3. Step 3: Cross multiply
    933,640.80x = 1,400,266.80 × 401,179.20
  4. Step 4: Simplify right side
    933,640.80x = 561,757,914,610.56
  5. Step 5: Solve for x
    x = 561,757,914,610.56/933,640.80
  6. Step 6: Final answer
    x = 601,685.27

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1.5x scale

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.