Home / 665,074.78-997,759.77-191,723.20

Finding the Fourth Proportional to 665,074.78, 997,759.77 and 191,723.20

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Solution

The fourth proportional to 665,074.78, 997,759.77 and 191,723.20 is: 287,627.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,074.78 : 997,759.77 = 191,723.20 : x
  2. Step 2: Convert to fraction form
    665,074.78/997,759.77 = 191,723.20/x
  3. Step 3: Cross multiply
    665,074.78x = 997,759.77 × 191,723.20
  4. Step 4: Simplify right side
    665,074.78x = 191,293,695,935.66
  5. Step 5: Solve for x
    x = 191,293,695,935.66/665,074.78
  6. Step 6: Final answer
    x = 287,627.35

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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.