Home / 385,180.13-531,546.76-215,414.93

Finding the Fourth Proportional to 385,180.13, 531,546.76 and 215,414.93

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Solution

The fourth proportional to 385,180.13, 531,546.76 and 215,414.93 is: 297,271.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,180.13 : 531,546.76 = 215,414.93 : x
  2. Step 2: Convert to fraction form
    385,180.13/531,546.76 = 215,414.93/x
  3. Step 3: Cross multiply
    385,180.13x = 531,546.76 × 215,414.93
  4. Step 4: Simplify right side
    385,180.13x = 114,503,108,097.13
  5. Step 5: Solve for x
    x = 114,503,108,097.13/385,180.13
  6. Step 6: Final answer
    x = 297,271.59

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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.