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Finding the Fourth Proportional to 474,550.61, 711,900.14 and 154,628.21

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Solution

The fourth proportional to 474,550.61, 711,900.14 and 154,628.21 is: 231,966.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,550.61 : 711,900.14 = 154,628.21 : x
  2. Step 2: Convert to fraction form
    474,550.61/711,900.14 = 154,628.21/x
  3. Step 3: Cross multiply
    474,550.61x = 711,900.14 × 154,628.21
  4. Step 4: Simplify right side
    474,550.61x = 110,079,840,014.31
  5. Step 5: Solve for x
    x = 110,079,840,014.31/474,550.61
  6. Step 6: Final answer
    x = 231,966.49

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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.