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Finding the Fourth Proportional to 314,617.96, 434,170.56 and 171,377.56

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Solution

The fourth proportional to 314,617.96, 434,170.56 and 171,377.56 is: 236,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,617.96 : 434,170.56 = 171,377.56 : x
  2. Step 2: Convert to fraction form
    314,617.96/434,170.56 = 171,377.56/x
  3. Step 3: Cross multiply
    314,617.96x = 434,170.56 × 171,377.56
  4. Step 4: Simplify right side
    314,617.96x = 74,407,091,196.63
  5. Step 5: Solve for x
    x = 74,407,091,196.63/314,617.96
  6. Step 6: Final answer
    x = 236,499.82

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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.