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Finding the Fourth Proportional to 266,778.40, 368,203.44 and 171,404.32

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Solution

The fourth proportional to 266,778.40, 368,203.44 and 171,404.32 is: 236,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,778.40 : 368,203.44 = 171,404.32 : x
  2. Step 2: Convert to fraction form
    266,778.40/368,203.44 = 171,404.32/x
  3. Step 3: Cross multiply
    266,778.40x = 368,203.44 × 171,404.32
  4. Step 4: Simplify right side
    266,778.40x = 63,111,660,254.86
  5. Step 5: Solve for x
    x = 63,111,660,254.86/266,778.40
  6. Step 6: Final answer
    x = 236,569.60

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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.