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Finding the Fourth Proportional to 266,936.40, 400,080.60 and 154,400.40

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Solution

The fourth proportional to 266,936.40, 400,080.60 and 154,400.40 is: 231,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,936.40 : 400,080.60 = 154,400.40 : x
  2. Step 2: Convert to fraction form
    266,936.40/400,080.60 = 154,400.40/x
  3. Step 3: Cross multiply
    266,936.40x = 400,080.60 × 154,400.40
  4. Step 4: Simplify right side
    266,936.40x = 61,772,604,672.24
  5. Step 5: Solve for x
    x = 61,772,604,672.24/266,936.40
  6. Step 6: Final answer
    x = 231,413.19

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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.