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Finding the Fourth Proportional to 544,116.80, 816,175.20 and 485,019.20

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Solution

The fourth proportional to 544,116.80, 816,175.20 and 485,019.20 is: 727,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,116.80 : 816,175.20 = 485,019.20 : x
  2. Step 2: Convert to fraction form
    544,116.80/816,175.20 = 485,019.20/x
  3. Step 3: Cross multiply
    544,116.80x = 816,175.20 × 485,019.20
  4. Step 4: Simplify right side
    544,116.80x = 395,860,642,563.84
  5. Step 5: Solve for x
    x = 395,860,642,563.84/544,116.80
  6. Step 6: Final answer
    x = 727,528.80

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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.