Home / 345,685.36-518,518.32-188,906.64

Finding the Fourth Proportional to 345,685.36, 518,518.32 and 188,906.64

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Solution

The fourth proportional to 345,685.36, 518,518.32 and 188,906.64 is: 283,354.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,685.36 : 518,518.32 = 188,906.64 : x
  2. Step 2: Convert to fraction form
    345,685.36/518,518.32 = 188,906.64/x
  3. Step 3: Cross multiply
    345,685.36x = 518,518.32 × 188,906.64
  4. Step 4: Simplify right side
    345,685.36x = 97,951,553,609.64
  5. Step 5: Solve for x
    x = 97,951,553,609.64/345,685.36
  6. Step 6: Final answer
    x = 283,354.65

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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.