Home / 645,944.43-968,265.31-406,229.64

Finding the Fourth Proportional to 645,944.43, 968,265.31 and 406,229.64

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Solution

The fourth proportional to 645,944.43, 968,265.31 and 406,229.64 is: 608,934.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,944.43 : 968,265.31 = 406,229.64 : x
  2. Step 2: Convert to fraction form
    645,944.43/968,265.31 = 406,229.64/x
  3. Step 3: Cross multiply
    645,944.43x = 968,265.31 × 406,229.64
  4. Step 4: Simplify right side
    645,944.43x = 393,338,068,305.79
  5. Step 5: Solve for x
    x = 393,338,068,305.79/645,944.43
  6. Step 6: Final answer
    x = 608,934.84

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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.