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Finding the Fourth Proportional to 304,707.76, 457,181.88 and 220,573.80

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Solution

The fourth proportional to 304,707.76, 457,181.88 and 220,573.80 is: 330,947.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,707.76 : 457,181.88 = 220,573.80 : x
  2. Step 2: Convert to fraction form
    304,707.76/457,181.88 = 220,573.80/x
  3. Step 3: Cross multiply
    304,707.76x = 457,181.88 × 220,573.80
  4. Step 4: Simplify right side
    304,707.76x = 100,842,344,562.74
  5. Step 5: Solve for x
    x = 100,842,344,562.74/304,707.76
  6. Step 6: Final answer
    x = 330,947.74

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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.