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Finding the Fourth Proportional to 313,490.56, 432,627.04 and 177,522.56

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Solution

The fourth proportional to 313,490.56, 432,627.04 and 177,522.56 is: 244,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,490.56 : 432,627.04 = 177,522.56 : x
  2. Step 2: Convert to fraction form
    313,490.56/432,627.04 = 177,522.56/x
  3. Step 3: Cross multiply
    313,490.56x = 432,627.04 × 177,522.56
  4. Step 4: Simplify right side
    313,490.56x = 76,801,059,666.02
  5. Step 5: Solve for x
    x = 76,801,059,666.02/313,490.56
  6. Step 6: Final answer
    x = 244,986.83

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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.