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Finding the Fourth Proportional to 453,798.72, 680,698.24 and 204,189.12

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Solution

The fourth proportional to 453,798.72, 680,698.24 and 204,189.12 is: 306,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,798.72 : 680,698.24 = 204,189.12 : x
  2. Step 2: Convert to fraction form
    453,798.72/680,698.24 = 204,189.12/x
  3. Step 3: Cross multiply
    453,798.72x = 680,698.24 × 204,189.12
  4. Step 4: Simplify right side
    453,798.72x = 138,991,174,611.15
  5. Step 5: Solve for x
    x = 138,991,174,611.15/453,798.72
  6. Step 6: Final answer
    x = 306,283.75

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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.