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Finding the Fourth Proportional to 587,571.48, 811,096.72 and 396,843.22

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Solution

The fourth proportional to 587,571.48, 811,096.72 and 396,843.22 is: 547,811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,571.48 : 811,096.72 = 396,843.22 : x
  2. Step 2: Convert to fraction form
    587,571.48/811,096.72 = 396,843.22/x
  3. Step 3: Cross multiply
    587,571.48x = 811,096.72 × 396,843.22
  4. Step 4: Simplify right side
    587,571.48x = 321,878,234,096.24
  5. Step 5: Solve for x
    x = 321,878,234,096.24/587,571.48
  6. Step 6: Final answer
    x = 547,811.19

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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.