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Finding the Fourth Proportional to 518,185.15, 777,277.73 and 181,113.78

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Solution

The fourth proportional to 518,185.15, 777,277.73 and 181,113.78 is: 271,670.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,185.15 : 777,277.73 = 181,113.78 : x
  2. Step 2: Convert to fraction form
    518,185.15/777,277.73 = 181,113.78/x
  3. Step 3: Cross multiply
    518,185.15x = 777,277.73 × 181,113.78
  4. Step 4: Simplify right side
    518,185.15x = 140,775,702,998.16
  5. Step 5: Solve for x
    x = 140,775,702,998.16/518,185.15
  6. Step 6: Final answer
    x = 271,670.66

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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.