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Finding the Fourth Proportional to 328,894.50, 453,874.43 and 177,991.50

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Solution

The fourth proportional to 328,894.50, 453,874.43 and 177,991.50 is: 245,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,894.50 : 453,874.43 = 177,991.50 : x
  2. Step 2: Convert to fraction form
    328,894.50/453,874.43 = 177,991.50/x
  3. Step 3: Cross multiply
    328,894.50x = 453,874.43 × 177,991.50
  4. Step 4: Simplify right side
    328,894.50x = 80,785,792,754.35
  5. Step 5: Solve for x
    x = 80,785,792,754.35/328,894.50
  6. Step 6: Final answer
    x = 245,628.28

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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.