Home / 905,996.62-1,250,276.14-498,105.40

Finding the Fourth Proportional to 905,996.62, 1,250,276.14 and 498,105.40

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Solution

The fourth proportional to 905,996.62, 1,250,276.14 and 498,105.40 is: 687,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,996.62 : 1,250,276.14 = 498,105.40 : x
  2. Step 2: Convert to fraction form
    905,996.62/1,250,276.14 = 498,105.40/x
  3. Step 3: Cross multiply
    905,996.62x = 1,250,276.14 × 498,105.40
  4. Step 4: Simplify right side
    905,996.62x = 622,769,294,334.63
  5. Step 5: Solve for x
    x = 622,769,294,334.63/905,996.62
  6. Step 6: Final answer
    x = 687,385.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.