Home / 414,218.76-571,814.42-312,285.48

Finding the Fourth Proportional to 414,218.76, 571,814.42 and 312,285.48

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Solution

The fourth proportional to 414,218.76, 571,814.42 and 312,285.48 is: 431,099.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,218.76 : 571,814.42 = 312,285.48 : x
  2. Step 2: Convert to fraction form
    414,218.76/571,814.42 = 312,285.48/x
  3. Step 3: Cross multiply
    414,218.76x = 571,814.42 × 312,285.48
  4. Step 4: Simplify right side
    414,218.76x = 178,569,340,620.62
  5. Step 5: Solve for x
    x = 178,569,340,620.62/414,218.76
  6. Step 6: Final answer
    x = 431,099.11

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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.