Home / 645,944.56-968,265.50-406,229.77

Finding the Fourth Proportional to 645,944.56, 968,265.50 and 406,229.77

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Solution

The fourth proportional to 645,944.56, 968,265.50 and 406,229.77 is: 608,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,944.56 : 968,265.50 = 406,229.77 : x
  2. Step 2: Convert to fraction form
    645,944.56/968,265.50 = 406,229.77/x
  3. Step 3: Cross multiply
    645,944.56x = 968,265.50 × 406,229.77
  4. Step 4: Simplify right side
    645,944.56x = 393,338,266,912.12
  5. Step 5: Solve for x
    x = 393,338,266,912.12/645,944.56
  6. Step 6: Final answer
    x = 608,935.03

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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.