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Finding the Fourth Proportional to 316,583.84, 436,885.60 and 173,343.84

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Solution

The fourth proportional to 316,583.84, 436,885.60 and 173,343.84 is: 239,214.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,583.84 : 436,885.60 = 173,343.84 : x
  2. Step 2: Convert to fraction form
    316,583.84/436,885.60 = 173,343.84/x
  3. Step 3: Cross multiply
    316,583.84x = 436,885.60 × 173,343.84
  4. Step 4: Simplify right side
    316,583.84x = 75,731,427,544.70
  5. Step 5: Solve for x
    x = 75,731,427,544.70/316,583.84
  6. Step 6: Final answer
    x = 239,214.44

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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.