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Finding the Fourth Proportional to 362,238.30, 543,357.45 and 212,550.30

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Solution

The fourth proportional to 362,238.30, 543,357.45 and 212,550.30 is: 318,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,238.30 : 543,357.45 = 212,550.30 : x
  2. Step 2: Convert to fraction form
    362,238.30/543,357.45 = 212,550.30/x
  3. Step 3: Cross multiply
    362,238.30x = 543,357.45 × 212,550.30
  4. Step 4: Simplify right side
    362,238.30x = 115,490,789,004.74
  5. Step 5: Solve for x
    x = 115,490,789,004.74/362,238.30
  6. Step 6: Final answer
    x = 318,825.45

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1.5x scale

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.