Home / 385,233.43-531,593.26-215,434.75

Finding the Fourth Proportional to 385,233.43, 531,593.26 and 215,434.75

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Solution

The fourth proportional to 385,233.43, 531,593.26 and 215,434.75 is: 297,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,233.43 : 531,593.26 = 215,434.75 : x
  2. Step 2: Convert to fraction form
    385,233.43/531,593.26 = 215,434.75/x
  3. Step 3: Cross multiply
    385,233.43x = 531,593.26 × 215,434.75
  4. Step 4: Simplify right side
    385,233.43x = 114,523,661,069.79
  5. Step 5: Solve for x
    x = 114,523,661,069.79/385,233.43
  6. Step 6: Final answer
    x = 297,283.81

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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.