Home / 1,040,123.70-1,560,185.55-613,221.30

Finding the Fourth Proportional to 1,040,123.70, 1,560,185.55 and 613,221.30

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Solution

The fourth proportional to 1,040,123.70, 1,560,185.55 and 613,221.30 is: 919,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,123.70 : 1,560,185.55 = 613,221.30 : x
  2. Step 2: Convert to fraction form
    1,040,123.70/1,560,185.55 = 613,221.30/x
  3. Step 3: Cross multiply
    1,040,123.70x = 1,560,185.55 × 613,221.30
  4. Step 4: Simplify right side
    1,040,123.70x = 956,739,011,212.22
  5. Step 5: Solve for x
    x = 956,739,011,212.22/1,040,123.70
  6. Step 6: Final answer
    x = 919,831.95

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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.