Home / 645,983.91-969,025.28-196,743.06

Finding the Fourth Proportional to 645,983.91, 969,025.28 and 196,743.06

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Solution

The fourth proportional to 645,983.91, 969,025.28 and 196,743.06 is: 295,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,983.91 : 969,025.28 = 196,743.06 : x
  2. Step 2: Convert to fraction form
    645,983.91/969,025.28 = 196,743.06/x
  3. Step 3: Cross multiply
    645,983.91x = 969,025.28 × 196,743.06
  4. Step 4: Simplify right side
    645,983.91x = 190,648,997,820.84
  5. Step 5: Solve for x
    x = 190,648,997,820.84/645,983.91
  6. Step 6: Final answer
    x = 295,129.64

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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.