Home / 312,631.57-469,575.08-186,518.21

Finding the Fourth Proportional to 312,631.57, 469,575.08 and 186,518.21

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Solution

The fourth proportional to 312,631.57, 469,575.08 and 186,518.21 is: 280,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,631.57 : 469,575.08 = 186,518.21 : x
  2. Step 2: Convert to fraction form
    312,631.57/469,575.08 = 186,518.21/x
  3. Step 3: Cross multiply
    312,631.57x = 469,575.08 × 186,518.21
  4. Step 4: Simplify right side
    312,631.57x = 87,584,305,022.44
  5. Step 5: Solve for x
    x = 87,584,305,022.44/312,631.57
  6. Step 6: Final answer
    x = 280,151.83

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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.