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Finding the Fourth Proportional to 422,018.46, 582,392.68 and 260,869.36

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Solution

The fourth proportional to 422,018.46, 582,392.68 and 260,869.36 is: 360,004.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,018.46 : 582,392.68 = 260,869.36 : x
  2. Step 2: Convert to fraction form
    422,018.46/582,392.68 = 260,869.36/x
  3. Step 3: Cross multiply
    422,018.46x = 582,392.68 × 260,869.36
  4. Step 4: Simplify right side
    422,018.46x = 151,928,405,700.29
  5. Step 5: Solve for x
    x = 151,928,405,700.29/422,018.46
  6. Step 6: Final answer
    x = 360,004.17

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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.