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Finding the Fourth Proportional to 328,846.78, 453,809.76 and 177,943.78

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Solution

The fourth proportional to 328,846.78, 453,809.76 and 177,943.78 is: 245,563.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,846.78 : 453,809.76 = 177,943.78 : x
  2. Step 2: Convert to fraction form
    328,846.78/453,809.76 = 177,943.78/x
  3. Step 3: Cross multiply
    328,846.78x = 453,809.76 × 177,943.78
  4. Step 4: Simplify right side
    328,846.78x = 80,752,624,095.29
  5. Step 5: Solve for x
    x = 80,752,624,095.29/328,846.78
  6. Step 6: Final answer
    x = 245,563.07

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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.