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Finding the Fourth Proportional to 340,593.19, 470,018.60 and 189,690.19

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Solution

The fourth proportional to 340,593.19, 470,018.60 and 189,690.19 is: 261,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,593.19 : 470,018.60 = 189,690.19 : x
  2. Step 2: Convert to fraction form
    340,593.19/470,018.60 = 189,690.19/x
  3. Step 3: Cross multiply
    340,593.19x = 470,018.60 × 189,690.19
  4. Step 4: Simplify right side
    340,593.19x = 89,157,916,125.37
  5. Step 5: Solve for x
    x = 89,157,916,125.37/340,593.19
  6. Step 6: Final answer
    x = 261,772.46

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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.