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Finding the Fourth Proportional to 515,846.30, 773,769.45 and 235,910.30

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Solution

The fourth proportional to 515,846.30, 773,769.45 and 235,910.30 is: 353,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,846.30 : 773,769.45 = 235,910.30 : x
  2. Step 2: Convert to fraction form
    515,846.30/773,769.45 = 235,910.30/x
  3. Step 3: Cross multiply
    515,846.30x = 773,769.45 × 235,910.30
  4. Step 4: Simplify right side
    515,846.30x = 182,540,183,080.34
  5. Step 5: Solve for x
    x = 182,540,183,080.34/515,846.30
  6. Step 6: Final answer
    x = 353,865.45

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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.