Home / 816,742.25-1,225,171.69-217,700.27

Finding the Fourth Proportional to 816,742.25, 1,225,171.69 and 217,700.27

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Solution

The fourth proportional to 816,742.25, 1,225,171.69 and 217,700.27 is: 326,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,742.25 : 1,225,171.69 = 217,700.27 : x
  2. Step 2: Convert to fraction form
    816,742.25/1,225,171.69 = 217,700.27/x
  3. Step 3: Cross multiply
    816,742.25x = 1,225,171.69 × 217,700.27
  4. Step 4: Simplify right side
    816,742.25x = 266,720,201,039.25
  5. Step 5: Solve for x
    x = 266,720,201,039.25/816,742.25
  6. Step 6: Final answer
    x = 326,565.94

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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.