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Finding the Fourth Proportional to 540,589.15, 746,028.60 and 298,887.32

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Solution

The fourth proportional to 540,589.15, 746,028.60 and 298,887.32 is: 412,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,589.15 : 746,028.60 = 298,887.32 : x
  2. Step 2: Convert to fraction form
    540,589.15/746,028.60 = 298,887.32/x
  3. Step 3: Cross multiply
    540,589.15x = 746,028.60 × 298,887.32
  4. Step 4: Simplify right side
    540,589.15x = 222,978,487,402.92
  5. Step 5: Solve for x
    x = 222,978,487,402.92/540,589.15
  6. Step 6: Final answer
    x = 412,473.11

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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.