Home / 386,966.72-533,996.11-214,895.61

Finding the Fourth Proportional to 386,966.72, 533,996.11 and 214,895.61

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Solution

The fourth proportional to 386,966.72, 533,996.11 and 214,895.61 is: 296,545.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,966.72 : 533,996.11 = 214,895.61 : x
  2. Step 2: Convert to fraction form
    386,966.72/533,996.11 = 214,895.61/x
  3. Step 3: Cross multiply
    386,966.72x = 533,996.11 × 214,895.61
  4. Step 4: Simplify right side
    386,966.72x = 114,753,417,656.24
  5. Step 5: Solve for x
    x = 114,753,417,656.24/386,966.72
  6. Step 6: Final answer
    x = 296,545.96

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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.