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Finding the Fourth Proportional to 366,428.70, 548,865.45 and 304,220.70

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Solution

The fourth proportional to 366,428.70, 548,865.45 and 304,220.70 is: 455,685.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,428.70 : 548,865.45 = 304,220.70 : x
  2. Step 2: Convert to fraction form
    366,428.70/548,865.45 = 304,220.70/x
  3. Step 3: Cross multiply
    366,428.70x = 548,865.45 × 304,220.70
  4. Step 4: Simplify right side
    366,428.70x = 166,976,231,404.82
  5. Step 5: Solve for x
    x = 166,976,231,404.82/366,428.70
  6. Step 6: Final answer
    x = 455,685.46

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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.