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Finding the Fourth Proportional to 313,654.59, 432,845.28 and 170,414.55

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Solution

The fourth proportional to 313,654.59, 432,845.28 and 170,414.55 is: 235,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,654.59 : 432,845.28 = 170,414.55 : x
  2. Step 2: Convert to fraction form
    313,654.59/432,845.28 = 170,414.55/x
  3. Step 3: Cross multiply
    313,654.59x = 432,845.28 × 170,414.55
  4. Step 4: Simplify right side
    313,654.59x = 73,763,133,610.82
  5. Step 5: Solve for x
    x = 73,763,133,610.82/313,654.59
  6. Step 6: Final answer
    x = 235,173.14

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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.