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Finding the Fourth Proportional to 328,896.45, 453,878.51 and 177,993.45

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Solution

The fourth proportional to 328,896.45, 453,878.51 and 177,993.45 is: 245,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,896.45 : 453,878.51 = 177,993.45 : x
  2. Step 2: Convert to fraction form
    328,896.45/453,878.51 = 177,993.45/x
  3. Step 3: Cross multiply
    328,896.45x = 453,878.51 × 177,993.45
  4. Step 4: Simplify right side
    328,896.45x = 80,787,400,985.79
  5. Step 5: Solve for x
    x = 80,787,400,985.79/328,896.45
  6. Step 6: Final answer
    x = 245,631.72

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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.