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Finding the Fourth Proportional to 447,755.40, 671,210.82 and 222,903

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Solution

The fourth proportional to 447,755.40, 671,210.82 and 222,903 is: 334,144.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,755.40 : 671,210.82 = 222,903 : x
  2. Step 2: Convert to fraction form
    447,755.40/671,210.82 = 222,903/x
  3. Step 3: Cross multiply
    447,755.40x = 671,210.82 × 222,903
  4. Step 4: Simplify right side
    447,755.40x = 149,614,905,410.46
  5. Step 5: Solve for x
    x = 149,614,905,410.46/447,755.40
  6. Step 6: Final answer
    x = 334,144.28

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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.