Home / 906,715.36-1,251,249.78-498,793.36

Finding the Fourth Proportional to 906,715.36, 1,251,249.78 and 498,793.36

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Solution

The fourth proportional to 906,715.36, 1,251,249.78 and 498,793.36 is: 688,325.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,715.36 : 1,251,249.78 = 498,793.36 : x
  2. Step 2: Convert to fraction form
    906,715.36/1,251,249.78 = 498,793.36/x
  3. Step 3: Cross multiply
    906,715.36x = 1,251,249.78 × 498,793.36
  4. Step 4: Simplify right side
    906,715.36x = 624,115,081,965.46
  5. Step 5: Solve for x
    x = 624,115,081,965.46/906,715.36
  6. Step 6: Final answer
    x = 688,325.26

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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.