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Finding the Fourth Proportional to 328,716.30, 453,628.50 and 177,813.30

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Solution

The fourth proportional to 328,716.30, 453,628.50 and 177,813.30 is: 245,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,716.30 : 453,628.50 = 177,813.30 : x
  2. Step 2: Convert to fraction form
    328,716.30/453,628.50 = 177,813.30/x
  3. Step 3: Cross multiply
    328,716.30x = 453,628.50 × 177,813.30
  4. Step 4: Simplify right side
    328,716.30x = 80,661,180,559.05
  5. Step 5: Solve for x
    x = 80,661,180,559.05/328,716.30
  6. Step 6: Final answer
    x = 245,382.36

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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.