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Finding the Fourth Proportional to 646,997.60, 970,496.40 and 367,061.60

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Solution

The fourth proportional to 646,997.60, 970,496.40 and 367,061.60 is: 550,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,997.60 : 970,496.40 = 367,061.60 : x
  2. Step 2: Convert to fraction form
    646,997.60/970,496.40 = 367,061.60/x
  3. Step 3: Cross multiply
    646,997.60x = 970,496.40 × 367,061.60
  4. Step 4: Simplify right side
    646,997.60x = 356,231,961,378.24
  5. Step 5: Solve for x
    x = 356,231,961,378.24/646,997.60
  6. Step 6: Final answer
    x = 550,592.40

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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.