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Finding the Fourth Proportional to 338,968.31, 467,774.97 and 186,009.05

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Solution

The fourth proportional to 338,968.31, 467,774.97 and 186,009.05 is: 256,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,968.31 : 467,774.97 = 186,009.05 : x
  2. Step 2: Convert to fraction form
    338,968.31/467,774.97 = 186,009.05/x
  3. Step 3: Cross multiply
    338,968.31x = 467,774.97 × 186,009.05
  4. Step 4: Simplify right side
    338,968.31x = 87,010,375,444.60
  5. Step 5: Solve for x
    x = 87,010,375,444.60/338,968.31
  6. Step 6: Final answer
    x = 256,691.77

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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.