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Finding the Fourth Proportional to 418,141.43, 577,035.86 and 227,154.98

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Solution

The fourth proportional to 418,141.43, 577,035.86 and 227,154.98 is: 313,474.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,141.43 : 577,035.86 = 227,154.98 : x
  2. Step 2: Convert to fraction form
    418,141.43/577,035.86 = 227,154.98/x
  3. Step 3: Cross multiply
    418,141.43x = 577,035.86 × 227,154.98
  4. Step 4: Simplify right side
    418,141.43x = 131,076,565,216.63
  5. Step 5: Solve for x
    x = 131,076,565,216.63/418,141.43
  6. Step 6: Final answer
    x = 313,474.24

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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.