Home / 386,920.50-533,951.40-214,838.83

Finding the Fourth Proportional to 386,920.50, 533,951.40 and 214,838.83

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Solution

The fourth proportional to 386,920.50, 533,951.40 and 214,838.83 is: 296,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,920.50 : 533,951.40 = 214,838.83 : x
  2. Step 2: Convert to fraction form
    386,920.50/533,951.40 = 214,838.83/x
  3. Step 3: Cross multiply
    386,920.50x = 533,951.40 × 214,838.83
  4. Step 4: Simplify right side
    386,920.50x = 114,713,494,052.86
  5. Step 5: Solve for x
    x = 114,713,494,052.86/386,920.50
  6. Step 6: Final answer
    x = 296,478.20

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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.