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Finding the Fourth Proportional to 443,178.53, 665,392 and 227,194.46

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Solution

The fourth proportional to 443,178.53, 665,392 and 227,194.46 is: 341,111.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,178.53 : 665,392 = 227,194.46 : x
  2. Step 2: Convert to fraction form
    443,178.53/665,392 = 227,194.46/x
  3. Step 3: Cross multiply
    443,178.53x = 665,392 × 227,194.46
  4. Step 4: Simplify right side
    443,178.53x = 151,173,376,128.32
  5. Step 5: Solve for x
    x = 151,173,376,128.32/443,178.53
  6. Step 6: Final answer
    x = 341,111.69

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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.