Home / 777,904.60-1,166,856.78-186,928.60

Finding the Fourth Proportional to 777,904.60, 1,166,856.78 and 186,928.60

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Solution

The fourth proportional to 777,904.60, 1,166,856.78 and 186,928.60 is: 280,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,904.60 : 1,166,856.78 = 186,928.60 : x
  2. Step 2: Convert to fraction form
    777,904.60/1,166,856.78 = 186,928.60/x
  3. Step 3: Cross multiply
    777,904.60x = 1,166,856.78 × 186,928.60
  4. Step 4: Simplify right side
    777,904.60x = 218,118,904,285.91
  5. Step 5: Solve for x
    x = 218,118,904,285.91/777,904.60
  6. Step 6: Final answer
    x = 280,392.87

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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.