Home / 686,432.16-1,029,633.36-187,796.16

Finding the Fourth Proportional to 686,432.16, 1,029,633.36 and 187,796.16

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Solution

The fourth proportional to 686,432.16, 1,029,633.36 and 187,796.16 is: 281,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,432.16 : 1,029,633.36 = 187,796.16 : x
  2. Step 2: Convert to fraction form
    686,432.16/1,029,633.36 = 187,796.16/x
  3. Step 3: Cross multiply
    686,432.16x = 1,029,633.36 × 187,796.16
  4. Step 4: Simplify right side
    686,432.16x = 193,361,191,215.90
  5. Step 5: Solve for x
    x = 193,361,191,215.90/686,432.16
  6. Step 6: Final answer
    x = 281,690.17

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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.