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Finding the Fourth Proportional to 536,642.60, 804,963.90 and 347,685.80

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Solution

The fourth proportional to 536,642.60, 804,963.90 and 347,685.80 is: 521,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,642.60 : 804,963.90 = 347,685.80 : x
  2. Step 2: Convert to fraction form
    536,642.60/804,963.90 = 347,685.80/x
  3. Step 3: Cross multiply
    536,642.60x = 804,963.90 × 347,685.80
  4. Step 4: Simplify right side
    536,642.60x = 279,874,517,542.62
  5. Step 5: Solve for x
    x = 279,874,517,542.62/536,642.60
  6. Step 6: Final answer
    x = 521,528.70

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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.