Home / 386,993.04-534,045.96-217,222.80

Finding the Fourth Proportional to 386,993.04, 534,045.96 and 217,222.80

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Solution

The fourth proportional to 386,993.04, 534,045.96 and 217,222.80 is: 299,764.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,993.04 : 534,045.96 = 217,222.80 : x
  2. Step 2: Convert to fraction form
    386,993.04/534,045.96 = 217,222.80/x
  3. Step 3: Cross multiply
    386,993.04x = 534,045.96 × 217,222.80
  4. Step 4: Simplify right side
    386,993.04x = 116,006,958,759.89
  5. Step 5: Solve for x
    x = 116,006,958,759.89/386,993.04
  6. Step 6: Final answer
    x = 299,764.97

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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.