Home / 384,861.85-531,108.01-215,095.97

Finding the Fourth Proportional to 384,861.85, 531,108.01 and 215,095.97

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Solution

The fourth proportional to 384,861.85, 531,108.01 and 215,095.97 is: 296,831.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,861.85 : 531,108.01 = 215,095.97 : x
  2. Step 2: Convert to fraction form
    384,861.85/531,108.01 = 215,095.97/x
  3. Step 3: Cross multiply
    384,861.85x = 531,108.01 × 215,095.97
  4. Step 4: Simplify right side
    384,861.85x = 114,239,192,585.72
  5. Step 5: Solve for x
    x = 114,239,192,585.72/384,861.85
  6. Step 6: Final answer
    x = 296,831.69

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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.