Home / 457,981.83-686,974.53-191,555.46

Finding the Fourth Proportional to 457,981.83, 686,974.53 and 191,555.46

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Solution

The fourth proportional to 457,981.83, 686,974.53 and 191,555.46 is: 287,333.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,981.83 : 686,974.53 = 191,555.46 : x
  2. Step 2: Convert to fraction form
    457,981.83/686,974.53 = 191,555.46/x
  3. Step 3: Cross multiply
    457,981.83x = 686,974.53 × 191,555.46
  4. Step 4: Simplify right side
    457,981.83x = 131,593,722,102.43
  5. Step 5: Solve for x
    x = 131,593,722,102.43/457,981.83
  6. Step 6: Final answer
    x = 287,333.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.