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Finding the Fourth Proportional to 557,998.20, 836,997.30 and 291,840.30

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Solution

The fourth proportional to 557,998.20, 836,997.30 and 291,840.30 is: 437,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,998.20 : 836,997.30 = 291,840.30 : x
  2. Step 2: Convert to fraction form
    557,998.20/836,997.30 = 291,840.30/x
  3. Step 3: Cross multiply
    557,998.20x = 836,997.30 × 291,840.30
  4. Step 4: Simplify right side
    557,998.20x = 244,269,543,131.19
  5. Step 5: Solve for x
    x = 244,269,543,131.19/557,998.20
  6. Step 6: Final answer
    x = 437,760.45

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Double scale
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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.