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Finding the Fourth Proportional to 610,791.83, 842,797.67 and 349,143.40

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Solution

The fourth proportional to 610,791.83, 842,797.67 and 349,143.40 is: 481,763.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,791.83 : 842,797.67 = 349,143.40 : x
  2. Step 2: Convert to fraction form
    610,791.83/842,797.67 = 349,143.40/x
  3. Step 3: Cross multiply
    610,791.83x = 842,797.67 × 349,143.40
  4. Step 4: Simplify right side
    610,791.83x = 294,257,244,015.88
  5. Step 5: Solve for x
    x = 294,257,244,015.88/610,791.83
  6. Step 6: Final answer
    x = 481,763.56

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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.