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Finding the Fourth Proportional to 443,336, 611,807.57 and 252,361.67

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Solution

The fourth proportional to 443,336, 611,807.57 and 252,361.67 is: 348,261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,336 : 611,807.57 = 252,361.67 : x
  2. Step 2: Convert to fraction form
    443,336/611,807.57 = 252,361.67/x
  3. Step 3: Cross multiply
    443,336x = 611,807.57 × 252,361.67
  4. Step 4: Simplify right side
    443,336x = 154,396,780,083.84
  5. Step 5: Solve for x
    x = 154,396,780,083.84/443,336
  6. Step 6: Final answer
    x = 348,261.32

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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.