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Finding the Fourth Proportional to 579,867.72, 869,593.17 and 200,685.60

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Solution

The fourth proportional to 579,867.72, 869,593.17 and 200,685.60 is: 300,956.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,867.72 : 869,593.17 = 200,685.60 : x
  2. Step 2: Convert to fraction form
    579,867.72/869,593.17 = 200,685.60/x
  3. Step 3: Cross multiply
    579,867.72x = 869,593.17 × 200,685.60
  4. Step 4: Simplify right side
    579,867.72x = 174,514,827,077.35
  5. Step 5: Solve for x
    x = 174,514,827,077.35/579,867.72
  6. Step 6: Final answer
    x = 300,956.27

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Double scale
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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.