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Finding the Fourth Proportional to 303,896.80, 456,255.60 and 177,666.40

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Solution

The fourth proportional to 303,896.80, 456,255.60 and 177,666.40 is: 266,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,896.80 : 456,255.60 = 177,666.40 : x
  2. Step 2: Convert to fraction form
    303,896.80/456,255.60 = 177,666.40/x
  3. Step 3: Cross multiply
    303,896.80x = 456,255.60 × 177,666.40
  4. Step 4: Simplify right side
    303,896.80x = 81,061,289,931.84
  5. Step 5: Solve for x
    x = 81,061,289,931.84/303,896.80
  6. Step 6: Final answer
    x = 266,739.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.