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Finding the Fourth Proportional to 531,090.60, 796,635.90 and 251,154.60

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Solution

The fourth proportional to 531,090.60, 796,635.90 and 251,154.60 is: 376,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,090.60 : 796,635.90 = 251,154.60 : x
  2. Step 2: Convert to fraction form
    531,090.60/796,635.90 = 251,154.60/x
  3. Step 3: Cross multiply
    531,090.60x = 796,635.90 × 251,154.60
  4. Step 4: Simplify right side
    531,090.60x = 200,078,770,810.14
  5. Step 5: Solve for x
    x = 200,078,770,810.14/531,090.60
  6. Step 6: Final answer
    x = 376,731.90

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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.