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Finding the Fourth Proportional to 465,090.60, 697,635.90 and 331,246.20

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Solution

The fourth proportional to 465,090.60, 697,635.90 and 331,246.20 is: 496,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,090.60 : 697,635.90 = 331,246.20 : x
  2. Step 2: Convert to fraction form
    465,090.60/697,635.90 = 331,246.20/x
  3. Step 3: Cross multiply
    465,090.60x = 697,635.90 × 331,246.20
  4. Step 4: Simplify right side
    465,090.60x = 231,089,240,858.58
  5. Step 5: Solve for x
    x = 231,089,240,858.58/465,090.60
  6. Step 6: Final answer
    x = 496,869.30

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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.