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Finding the Fourth Proportional to 231,640.80, 347,461.20 and 222,783.45

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Solution

The fourth proportional to 231,640.80, 347,461.20 and 222,783.45 is: 334,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,640.80 : 347,461.20 = 222,783.45 : x
  2. Step 2: Convert to fraction form
    231,640.80/347,461.20 = 222,783.45/x
  3. Step 3: Cross multiply
    231,640.80x = 347,461.20 × 222,783.45
  4. Step 4: Simplify right side
    231,640.80x = 77,408,604,877.14
  5. Step 5: Solve for x
    x = 77,408,604,877.14/231,640.80
  6. Step 6: Final answer
    x = 334,175.18

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1.5x scale

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.