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Finding the Fourth Proportional to 531,812.61, 733,906.09 and 290,096.26

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Solution

The fourth proportional to 531,812.61, 733,906.09 and 290,096.26 is: 400,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,812.61 : 733,906.09 = 290,096.26 : x
  2. Step 2: Convert to fraction form
    531,812.61/733,906.09 = 290,096.26/x
  3. Step 3: Cross multiply
    531,812.61x = 733,906.09 × 290,096.26
  4. Step 4: Simplify right side
    531,812.61x = 212,903,410,428.08
  5. Step 5: Solve for x
    x = 212,903,410,428.08/531,812.61
  6. Step 6: Final answer
    x = 400,335.39

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.