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Finding the Fourth Proportional to 546,791.19, 754,570.80 and 305,059.38

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Solution

The fourth proportional to 546,791.19, 754,570.80 and 305,059.38 is: 420,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,791.19 : 754,570.80 = 305,059.38 : x
  2. Step 2: Convert to fraction form
    546,791.19/754,570.80 = 305,059.38/x
  3. Step 3: Cross multiply
    546,791.19x = 754,570.80 × 305,059.38
  4. Step 4: Simplify right side
    546,791.19x = 230,188,900,414.10
  5. Step 5: Solve for x
    x = 230,188,900,414.10/546,791.19
  6. Step 6: Final answer
    x = 420,981.36

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1.5x scale

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.