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Finding the Fourth Proportional to 304,539.60, 457,327.80 and 225,742.80

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Solution

The fourth proportional to 304,539.60, 457,327.80 and 225,742.80 is: 338,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,539.60 : 457,327.80 = 225,742.80 : x
  2. Step 2: Convert to fraction form
    304,539.60/457,327.80 = 225,742.80/x
  3. Step 3: Cross multiply
    304,539.60x = 457,327.80 × 225,742.80
  4. Step 4: Simplify right side
    304,539.60x = 103,238,458,089.84
  5. Step 5: Solve for x
    x = 103,238,458,089.84/304,539.60
  6. Step 6: Final answer
    x = 338,998.47

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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.