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Finding the Fourth Proportional to 312,825.95, 431,867.31 and 244,698.17

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Solution

The fourth proportional to 312,825.95, 431,867.31 and 244,698.17 is: 337,814.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,825.95 : 431,867.31 = 244,698.17 : x
  2. Step 2: Convert to fraction form
    312,825.95/431,867.31 = 244,698.17/x
  3. Step 3: Cross multiply
    312,825.95x = 431,867.31 × 244,698.17
  4. Step 4: Simplify right side
    312,825.95x = 105,677,140,439.82
  5. Step 5: Solve for x
    x = 105,677,140,439.82/312,825.95
  6. Step 6: Final answer
    x = 337,814.50

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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.