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Finding the Fourth Proportional to 422,803.71, 583,464.68 and 231,816.63

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Solution

The fourth proportional to 422,803.71, 583,464.68 and 231,816.63 is: 319,904.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,803.71 : 583,464.68 = 231,816.63 : x
  2. Step 2: Convert to fraction form
    422,803.71/583,464.68 = 231,816.63/x
  3. Step 3: Cross multiply
    422,803.71x = 583,464.68 × 231,816.63
  4. Step 4: Simplify right side
    422,803.71x = 135,256,814,682.55
  5. Step 5: Solve for x
    x = 135,256,814,682.55/422,803.71
  6. Step 6: Final answer
    x = 319,904.51

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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.