Home / 638,014.12-957,169.26-217,293.64

Finding the Fourth Proportional to 638,014.12, 957,169.26 and 217,293.64

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Solution

The fourth proportional to 638,014.12, 957,169.26 and 217,293.64 is: 325,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,014.12 : 957,169.26 = 217,293.64 : x
  2. Step 2: Convert to fraction form
    638,014.12/957,169.26 = 217,293.64/x
  3. Step 3: Cross multiply
    638,014.12x = 957,169.26 × 217,293.64
  4. Step 4: Simplify right side
    638,014.12x = 207,986,792,601.51
  5. Step 5: Solve for x
    x = 207,986,792,601.51/638,014.12
  6. Step 6: Final answer
    x = 325,990.89

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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.