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Finding the Fourth Proportional to 546,796.40, 820,194.60 and 347,998.10

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Solution

The fourth proportional to 546,796.40, 820,194.60 and 347,998.10 is: 521,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,796.40 : 820,194.60 = 347,998.10 : x
  2. Step 2: Convert to fraction form
    546,796.40/820,194.60 = 347,998.10/x
  3. Step 3: Cross multiply
    546,796.40x = 820,194.60 × 347,998.10
  4. Step 4: Simplify right side
    546,796.40x = 285,426,162,430.26
  5. Step 5: Solve for x
    x = 285,426,162,430.26/546,796.40
  6. Step 6: Final answer
    x = 521,997.15

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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.