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Finding the Fourth Proportional to 399,984.63, 552,012.84 and 227,955.21

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Solution

The fourth proportional to 399,984.63, 552,012.84 and 227,955.21 is: 314,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,984.63 : 552,012.84 = 227,955.21 : x
  2. Step 2: Convert to fraction form
    399,984.63/552,012.84 = 227,955.21/x
  3. Step 3: Cross multiply
    399,984.63x = 552,012.84 × 227,955.21
  4. Step 4: Simplify right side
    399,984.63x = 125,834,202,864.90
  5. Step 5: Solve for x
    x = 125,834,202,864.90/399,984.63
  6. Step 6: Final answer
    x = 314,597.60

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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.