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Finding the Fourth Proportional to 628,336.60, 942,504.90 and 617,968.60

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Solution

The fourth proportional to 628,336.60, 942,504.90 and 617,968.60 is: 926,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,336.60 : 942,504.90 = 617,968.60 : x
  2. Step 2: Convert to fraction form
    628,336.60/942,504.90 = 617,968.60/x
  3. Step 3: Cross multiply
    628,336.60x = 942,504.90 × 617,968.60
  4. Step 4: Simplify right side
    628,336.60x = 582,438,433,546.14
  5. Step 5: Solve for x
    x = 582,438,433,546.14/628,336.60
  6. Step 6: Final answer
    x = 926,952.90

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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.