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Finding the Fourth Proportional to 885,871.92, 1,222,486.20 and 483,466.80

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Solution

The fourth proportional to 885,871.92, 1,222,486.20 and 483,466.80 is: 667,174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,871.92 : 1,222,486.20 = 483,466.80 : x
  2. Step 2: Convert to fraction form
    885,871.92/1,222,486.20 = 483,466.80/x
  3. Step 3: Cross multiply
    885,871.92x = 1,222,486.20 × 483,466.80
  4. Step 4: Simplify right side
    885,871.92x = 591,031,491,158.16
  5. Step 5: Solve for x
    x = 591,031,491,158.16/885,871.92
  6. Step 6: Final answer
    x = 667,174.88

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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.