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Finding the Fourth Proportional to 427,718.60, 590,399.14 and 246,502.88

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Solution

The fourth proportional to 427,718.60, 590,399.14 and 246,502.88 is: 340,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,718.60 : 590,399.14 = 246,502.88 : x
  2. Step 2: Convert to fraction form
    427,718.60/590,399.14 = 246,502.88/x
  3. Step 3: Cross multiply
    427,718.60x = 590,399.14 × 246,502.88
  4. Step 4: Simplify right side
    427,718.60x = 145,535,088,359.52
  5. Step 5: Solve for x
    x = 145,535,088,359.52/427,718.60
  6. Step 6: Final answer
    x = 340,258.97

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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.