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Finding the Fourth Proportional to 300,216.61, 414,155.77 and 185,453.92

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Solution

The fourth proportional to 300,216.61, 414,155.77 and 185,453.92 is: 255,837.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,216.61 : 414,155.77 = 185,453.92 : x
  2. Step 2: Convert to fraction form
    300,216.61/414,155.77 = 185,453.92/x
  3. Step 3: Cross multiply
    300,216.61x = 414,155.77 × 185,453.92
  4. Step 4: Simplify right side
    300,216.61x = 76,806,811,037.12
  5. Step 5: Solve for x
    x = 76,806,811,037.12/300,216.61
  6. Step 6: Final answer
    x = 255,837.98

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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.