Home / 645,507.45-968,226.13-196,193.28

Finding the Fourth Proportional to 645,507.45, 968,226.13 and 196,193.28

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Solution

The fourth proportional to 645,507.45, 968,226.13 and 196,193.28 is: 294,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,507.45 : 968,226.13 = 196,193.28 : x
  2. Step 2: Convert to fraction form
    645,507.45/968,226.13 = 196,193.28/x
  3. Step 3: Cross multiply
    645,507.45x = 968,226.13 × 196,193.28
  4. Step 4: Simplify right side
    645,507.45x = 189,959,463,366.77
  5. Step 5: Solve for x
    x = 189,959,463,366.77/645,507.45
  6. Step 6: Final answer
    x = 294,279.28

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Double scale
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1.5x scale

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.