Home / 906,771.78-1,251,345.11-498,864.89

Finding the Fourth Proportional to 906,771.78, 1,251,345.11 and 498,864.89

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Solution

The fourth proportional to 906,771.78, 1,251,345.11 and 498,864.89 is: 688,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,771.78 : 1,251,345.11 = 498,864.89 : x
  2. Step 2: Convert to fraction form
    906,771.78/1,251,345.11 = 498,864.89/x
  3. Step 3: Cross multiply
    906,771.78x = 1,251,345.11 × 498,864.89
  4. Step 4: Simplify right side
    906,771.78x = 624,252,141,286.23
  5. Step 5: Solve for x
    x = 624,252,141,286.23/906,771.78
  6. Step 6: Final answer
    x = 688,433.58

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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.