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Finding the Fourth Proportional to 620,192.05, 929,042.48 and 282,768.55

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Solution

The fourth proportional to 620,192.05, 929,042.48 and 282,768.55 is: 423,584.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,192.05 : 929,042.48 = 282,768.55 : x
  2. Step 2: Convert to fraction form
    620,192.05/929,042.48 = 282,768.55/x
  3. Step 3: Cross multiply
    620,192.05x = 929,042.48 × 282,768.55
  4. Step 4: Simplify right side
    620,192.05x = 262,703,993,342.32
  5. Step 5: Solve for x
    x = 262,703,993,342.32/620,192.05
  6. Step 6: Final answer
    x = 423,584.91

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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.