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Finding the Fourth Proportional to 350,766.79, 484,046.38 and 221,774.69

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Solution

The fourth proportional to 350,766.79, 484,046.38 and 221,774.69 is: 306,041.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,766.79 : 484,046.38 = 221,774.69 : x
  2. Step 2: Convert to fraction form
    350,766.79/484,046.38 = 221,774.69/x
  3. Step 3: Cross multiply
    350,766.79x = 484,046.38 × 221,774.69
  4. Step 4: Simplify right side
    350,766.79x = 107,349,237,357.46
  5. Step 5: Solve for x
    x = 107,349,237,357.46/350,766.79
  6. Step 6: Final answer
    x = 306,041.62

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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.