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Finding the Fourth Proportional to 313,279.48, 432,222.75 and 177,299.92

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Solution

The fourth proportional to 313,279.48, 432,222.75 and 177,299.92 is: 244,615.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,279.48 : 432,222.75 = 177,299.92 : x
  2. Step 2: Convert to fraction form
    313,279.48/432,222.75 = 177,299.92/x
  3. Step 3: Cross multiply
    313,279.48x = 432,222.75 × 177,299.92
  4. Step 4: Simplify right side
    313,279.48x = 76,633,058,997.18
  5. Step 5: Solve for x
    x = 76,633,058,997.18/313,279.48
  6. Step 6: Final answer
    x = 244,615.64

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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.