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Finding the Fourth Proportional to 340,593.60, 470,019.09 and 189,690.60

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Solution

The fourth proportional to 340,593.60, 470,019.09 and 189,690.60 is: 261,772.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,593.60 : 470,019.09 = 189,690.60 : x
  2. Step 2: Convert to fraction form
    340,593.60/470,019.09 = 189,690.60/x
  3. Step 3: Cross multiply
    340,593.60x = 470,019.09 × 189,690.60
  4. Step 4: Simplify right side
    340,593.60x = 89,158,203,193.55
  5. Step 5: Solve for x
    x = 89,158,203,193.55/340,593.60
  6. Step 6: Final answer
    x = 261,772.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.