Home / 386,758.27-533,718.15-214,666.21

Finding the Fourth Proportional to 386,758.27, 533,718.15 and 214,666.21

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Solution

The fourth proportional to 386,758.27, 533,718.15 and 214,666.21 is: 296,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,758.27 : 533,718.15 = 214,666.21 : x
  2. Step 2: Convert to fraction form
    386,758.27/533,718.15 = 214,666.21/x
  3. Step 3: Cross multiply
    386,758.27x = 533,718.15 × 214,666.21
  4. Step 4: Simplify right side
    386,758.27x = 114,571,252,468.71
  5. Step 5: Solve for x
    x = 114,571,252,468.71/386,758.27
  6. Step 6: Final answer
    x = 296,234.78

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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.