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Finding the Fourth Proportional to 443,451.21, 611,963.22 and 252,464.59

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Solution

The fourth proportional to 443,451.21, 611,963.22 and 252,464.59 is: 348,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,451.21 : 611,963.22 = 252,464.59 : x
  2. Step 2: Convert to fraction form
    443,451.21/611,963.22 = 252,464.59/x
  3. Step 3: Cross multiply
    443,451.21x = 611,963.22 × 252,464.59
  4. Step 4: Simplify right side
    443,451.21x = 154,499,043,432.38
  5. Step 5: Solve for x
    x = 154,499,043,432.38/443,451.21
  6. Step 6: Final answer
    x = 348,401.45

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Double scale
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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.