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Finding the Fourth Proportional to 418,553.40, 577,604.94 and 227,567.52

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Solution

The fourth proportional to 418,553.40, 577,604.94 and 227,567.52 is: 314,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,553.40 : 577,604.94 = 227,567.52 : x
  2. Step 2: Convert to fraction form
    418,553.40/577,604.94 = 227,567.52/x
  3. Step 3: Cross multiply
    418,553.40x = 577,604.94 × 227,567.52
  4. Step 4: Simplify right side
    418,553.40x = 131,444,123,735.55
  5. Step 5: Solve for x
    x = 131,444,123,735.55/418,553.40
  6. Step 6: Final answer
    x = 314,043.86

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1.5x scale

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.