Home / 638,016.12-957,172.26-217,295.64

Finding the Fourth Proportional to 638,016.12, 957,172.26 and 217,295.64

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Solution

The fourth proportional to 638,016.12, 957,172.26 and 217,295.64 is: 325,993.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,016.12 : 957,172.26 = 217,295.64 : x
  2. Step 2: Convert to fraction form
    638,016.12/957,172.26 = 217,295.64/x
  3. Step 3: Cross multiply
    638,016.12x = 957,172.26 × 217,295.64
  4. Step 4: Simplify right side
    638,016.12x = 207,989,358,826.95
  5. Step 5: Solve for x
    x = 207,989,358,826.95/638,016.12
  6. Step 6: Final answer
    x = 325,993.89

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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.