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Finding the Fourth Proportional to 644,191, 966,457.86 and 223,466.20

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Solution

The fourth proportional to 644,191, 966,457.86 and 223,466.20 is: 335,258.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,191 : 966,457.86 = 223,466.20 : x
  2. Step 2: Convert to fraction form
    644,191/966,457.86 = 223,466.20/x
  3. Step 3: Cross multiply
    644,191x = 966,457.86 × 223,466.20
  4. Step 4: Simplify right side
    644,191x = 215,970,665,434.33
  5. Step 5: Solve for x
    x = 215,970,665,434.33/644,191
  6. Step 6: Final answer
    x = 335,258.74

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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.