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Finding the Fourth Proportional to 416,935.56, 575,432.78 and 263,987.97

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Solution

The fourth proportional to 416,935.56, 575,432.78 and 263,987.97 is: 364,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,935.56 : 575,432.78 = 263,987.97 : x
  2. Step 2: Convert to fraction form
    416,935.56/575,432.78 = 263,987.97/x
  3. Step 3: Cross multiply
    416,935.56x = 575,432.78 × 263,987.97
  4. Step 4: Simplify right side
    416,935.56x = 151,907,330,143.72
  5. Step 5: Solve for x
    x = 151,907,330,143.72/416,935.56
  6. Step 6: Final answer
    x = 364,342.47

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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.