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Finding the Fourth Proportional to 266,796.40, 368,228.28 and 171,422.32

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Solution

The fourth proportional to 266,796.40, 368,228.28 and 171,422.32 is: 236,594.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,796.40 : 368,228.28 = 171,422.32 : x
  2. Step 2: Convert to fraction form
    266,796.40/368,228.28 = 171,422.32/x
  3. Step 3: Cross multiply
    266,796.40x = 368,228.28 × 171,422.32
  4. Step 4: Simplify right side
    266,796.40x = 63,122,546,047.21
  5. Step 5: Solve for x
    x = 63,122,546,047.21/266,796.40
  6. Step 6: Final answer
    x = 236,594.44

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1.5x scale

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.