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Finding the Fourth Proportional to 316,452.92, 436,701.34 and 171,255.34

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Solution

The fourth proportional to 316,452.92, 436,701.34 and 171,255.34 is: 236,330.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,452.92 : 436,701.34 = 171,255.34 : x
  2. Step 2: Convert to fraction form
    316,452.92/436,701.34 = 171,255.34/x
  3. Step 3: Cross multiply
    316,452.92x = 436,701.34 × 171,255.34
  4. Step 4: Simplify right side
    316,452.92x = 74,787,436,460.16
  5. Step 5: Solve for x
    x = 74,787,436,460.16/316,452.92
  6. Step 6: Final answer
    x = 236,330.37

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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.