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Finding the Fourth Proportional to 544,087.80, 816,131.70 and 376,126.20

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Solution

The fourth proportional to 544,087.80, 816,131.70 and 376,126.20 is: 564,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,087.80 : 816,131.70 = 376,126.20 : x
  2. Step 2: Convert to fraction form
    544,087.80/816,131.70 = 376,126.20/x
  3. Step 3: Cross multiply
    544,087.80x = 816,131.70 × 376,126.20
  4. Step 4: Simplify right side
    544,087.80x = 306,968,515,020.54
  5. Step 5: Solve for x
    x = 306,968,515,020.54/544,087.80
  6. Step 6: Final answer
    x = 564,189.30

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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.