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Finding the Fourth Proportional to 416,486.90, 624,730.37 and 100,943.80

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Solution

The fourth proportional to 416,486.90, 624,730.37 and 100,943.80 is: 151,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,486.90 : 624,730.37 = 100,943.80 : x
  2. Step 2: Convert to fraction form
    416,486.90/624,730.37 = 100,943.80/x
  3. Step 3: Cross multiply
    416,486.90x = 624,730.37 × 100,943.80
  4. Step 4: Simplify right side
    416,486.90x = 63,062,659,538.58
  5. Step 5: Solve for x
    x = 63,062,659,538.58/416,486.90
  6. Step 6: Final answer
    x = 151,415.71

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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.