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Finding the Fourth Proportional to 386,595.54, 531,610.02 and 335,519.55

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Solution

The fourth proportional to 386,595.54, 531,610.02 and 335,519.55 is: 461,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,595.54 : 531,610.02 = 335,519.55 : x
  2. Step 2: Convert to fraction form
    386,595.54/531,610.02 = 335,519.55/x
  3. Step 3: Cross multiply
    386,595.54x = 531,610.02 × 335,519.55
  4. Step 4: Simplify right side
    386,595.54x = 178,365,554,685.89
  5. Step 5: Solve for x
    x = 178,365,554,685.89/386,595.54
  6. Step 6: Final answer
    x = 461,375.10

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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.