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Finding the Fourth Proportional to 328,889.34, 453,868.38 and 177,986.34

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Solution

The fourth proportional to 328,889.34, 453,868.38 and 177,986.34 is: 245,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,889.34 : 453,868.38 = 177,986.34 : x
  2. Step 2: Convert to fraction form
    328,889.34/453,868.38 = 177,986.34/x
  3. Step 3: Cross multiply
    328,889.34x = 453,868.38 × 177,986.34
  4. Step 4: Simplify right side
    328,889.34x = 80,782,371,797.93
  5. Step 5: Solve for x
    x = 80,782,371,797.93/328,889.34
  6. Step 6: Final answer
    x = 245,621.74

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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.