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Finding the Fourth Proportional to 669,327.84, 923,348.16 and 443,162.88

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Solution

The fourth proportional to 669,327.84, 923,348.16 and 443,162.88 is: 611,350.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,327.84 : 923,348.16 = 443,162.88 : x
  2. Step 2: Convert to fraction form
    669,327.84/923,348.16 = 443,162.88/x
  3. Step 3: Cross multiply
    669,327.84x = 923,348.16 × 443,162.88
  4. Step 4: Simplify right side
    669,327.84x = 409,193,629,828.30
  5. Step 5: Solve for x
    x = 409,193,629,828.30/669,327.84
  6. Step 6: Final answer
    x = 611,350.08

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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.