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Finding the Fourth Proportional to 474,980.56, 712,078.39 and 222,136.63

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Solution

The fourth proportional to 474,980.56, 712,078.39 and 222,136.63 is: 333,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,980.56 : 712,078.39 = 222,136.63 : x
  2. Step 2: Convert to fraction form
    474,980.56/712,078.39 = 222,136.63/x
  3. Step 3: Cross multiply
    474,980.56x = 712,078.39 × 222,136.63
  4. Step 4: Simplify right side
    474,980.56x = 158,178,692,347.90
  5. Step 5: Solve for x
    x = 158,178,692,347.90/474,980.56
  6. Step 6: Final answer
    x = 333,021.40

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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.