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Finding the Fourth Proportional to 557,343.70, 836,015.55 and 202,369.30

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Solution

The fourth proportional to 557,343.70, 836,015.55 and 202,369.30 is: 303,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,343.70 : 836,015.55 = 202,369.30 : x
  2. Step 2: Convert to fraction form
    557,343.70/836,015.55 = 202,369.30/x
  3. Step 3: Cross multiply
    557,343.70x = 836,015.55 × 202,369.30
  4. Step 4: Simplify right side
    557,343.70x = 169,183,881,642.62
  5. Step 5: Solve for x
    x = 169,183,881,642.62/557,343.70
  6. Step 6: Final answer
    x = 303,553.95

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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.