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Finding the Fourth Proportional to 531,233.40, 796,850.10 and 487,930.80

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Solution

The fourth proportional to 531,233.40, 796,850.10 and 487,930.80 is: 731,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,233.40 : 796,850.10 = 487,930.80 : x
  2. Step 2: Convert to fraction form
    531,233.40/796,850.10 = 487,930.80/x
  3. Step 3: Cross multiply
    531,233.40x = 796,850.10 × 487,930.80
  4. Step 4: Simplify right side
    531,233.40x = 388,807,706,773.08
  5. Step 5: Solve for x
    x = 388,807,706,773.08/531,233.40
  6. Step 6: Final answer
    x = 731,896.20

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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.