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Finding the Fourth Proportional to 304,909.93, 457,282.27 and 127,379.80

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Solution

The fourth proportional to 304,909.93, 457,282.27 and 127,379.80 is: 191,035.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,909.93 : 457,282.27 = 127,379.80 : x
  2. Step 2: Convert to fraction form
    304,909.93/457,282.27 = 127,379.80/x
  3. Step 3: Cross multiply
    304,909.93x = 457,282.27 × 127,379.80
  4. Step 4: Simplify right side
    304,909.93x = 58,248,524,096.15
  5. Step 5: Solve for x
    x = 58,248,524,096.15/304,909.93
  6. Step 6: Final answer
    x = 191,035.18

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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.