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Finding the Fourth Proportional to 397,659.72, 596,489.58 and 144,959.16

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Solution

The fourth proportional to 397,659.72, 596,489.58 and 144,959.16 is: 217,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,659.72 : 596,489.58 = 144,959.16 : x
  2. Step 2: Convert to fraction form
    397,659.72/596,489.58 = 144,959.16/x
  3. Step 3: Cross multiply
    397,659.72x = 596,489.58 × 144,959.16
  4. Step 4: Simplify right side
    397,659.72x = 86,466,628,465.55
  5. Step 5: Solve for x
    x = 86,466,628,465.55/397,659.72
  6. Step 6: Final answer
    x = 217,438.74

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Similar ratio
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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.