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Finding the Fourth Proportional to 536,636.60, 804,954.90 and 347,679.80

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Solution

The fourth proportional to 536,636.60, 804,954.90 and 347,679.80 is: 521,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,636.60 : 804,954.90 = 347,679.80 : x
  2. Step 2: Convert to fraction form
    536,636.60/804,954.90 = 347,679.80/x
  3. Step 3: Cross multiply
    536,636.60x = 804,954.90 × 347,679.80
  4. Step 4: Simplify right side
    536,636.60x = 279,866,558,641.02
  5. Step 5: Solve for x
    x = 279,866,558,641.02/536,636.60
  6. Step 6: Final answer
    x = 521,519.70

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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.