Home / 691,275.37-1,036,913.19-217,997.77

Finding the Fourth Proportional to 691,275.37, 1,036,913.19 and 217,997.77

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Solution

The fourth proportional to 691,275.37, 1,036,913.19 and 217,997.77 is: 326,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,275.37 : 1,036,913.19 = 217,997.77 : x
  2. Step 2: Convert to fraction form
    691,275.37/1,036,913.19 = 217,997.77/x
  3. Step 3: Cross multiply
    691,275.37x = 1,036,913.19 × 217,997.77
  4. Step 4: Simplify right side
    691,275.37x = 226,044,763,103.59
  5. Step 5: Solve for x
    x = 226,044,763,103.59/691,275.37
  6. Step 6: Final answer
    x = 326,996.70

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Double scale
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Similar ratio
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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.