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Finding the Fourth Proportional to 278,191.77, 416,810.94 and 186,835.92

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Solution

The fourth proportional to 278,191.77, 416,810.94 and 186,835.92 is: 279,933.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,191.77 : 416,810.94 = 186,835.92 : x
  2. Step 2: Convert to fraction form
    278,191.77/416,810.94 = 186,835.92/x
  3. Step 3: Cross multiply
    278,191.77x = 416,810.94 × 186,835.92
  4. Step 4: Simplify right side
    278,191.77x = 77,875,253,356.91
  5. Step 5: Solve for x
    x = 77,875,253,356.91/278,191.77
  6. Step 6: Final answer
    x = 279,933.71

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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.