Home / 386,864.07-533,910.75-217,098.87

Finding the Fourth Proportional to 386,864.07, 533,910.75 and 217,098.87

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Solution

The fourth proportional to 386,864.07, 533,910.75 and 217,098.87 is: 299,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,864.07 : 533,910.75 = 217,098.87 : x
  2. Step 2: Convert to fraction form
    386,864.07/533,910.75 = 217,098.87/x
  3. Step 3: Cross multiply
    386,864.07x = 533,910.75 × 217,098.87
  4. Step 4: Simplify right side
    386,864.07x = 115,911,420,505.85
  5. Step 5: Solve for x
    x = 115,911,420,505.85/386,864.07
  6. Step 6: Final answer
    x = 299,617.95

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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.