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Finding the Fourth Proportional to 395,219.66, 545,717.52 and 364,993.92

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Solution

The fourth proportional to 395,219.66, 545,717.52 and 364,993.92 is: 503,981.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,219.66 : 545,717.52 = 364,993.92 : x
  2. Step 2: Convert to fraction form
    395,219.66/545,717.52 = 364,993.92/x
  3. Step 3: Cross multiply
    395,219.66x = 545,717.52 × 364,993.92
  4. Step 4: Simplify right side
    395,219.66x = 199,183,576,837.48
  5. Step 5: Solve for x
    x = 199,183,576,837.48/395,219.66
  6. Step 6: Final answer
    x = 503,981.96

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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.