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Finding the Fourth Proportional to 536,614.10, 804,921.15 and 347,657.30

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Solution

The fourth proportional to 536,614.10, 804,921.15 and 347,657.30 is: 521,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,614.10 : 804,921.15 = 347,657.30 : x
  2. Step 2: Convert to fraction form
    536,614.10/804,921.15 = 347,657.30/x
  3. Step 3: Cross multiply
    536,614.10x = 804,921.15 × 347,657.30
  4. Step 4: Simplify right side
    536,614.10x = 279,836,713,721.90
  5. Step 5: Solve for x
    x = 279,836,713,721.90/536,614.10
  6. Step 6: Final answer
    x = 521,485.95

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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.