Home / 457,983.40-686,976.87-191,557.03

Finding the Fourth Proportional to 457,983.40, 686,976.87 and 191,557.03

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Solution

The fourth proportional to 457,983.40, 686,976.87 and 191,557.03 is: 287,336.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,983.40 : 686,976.87 = 191,557.03 : x
  2. Step 2: Convert to fraction form
    457,983.40/686,976.87 = 191,557.03/x
  3. Step 3: Cross multiply
    457,983.40x = 686,976.87 × 191,557.03
  4. Step 4: Simplify right side
    457,983.40x = 131,595,248,895.90
  5. Step 5: Solve for x
    x = 131,595,248,895.90/457,983.40
  6. Step 6: Final answer
    x = 287,336.29

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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.