Home / 867,474.36-1,197,141.12-485,499.96

Finding the Fourth Proportional to 867,474.36, 1,197,141.12 and 485,499.96

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Solution

The fourth proportional to 867,474.36, 1,197,141.12 and 485,499.96 is: 670,004.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,474.36 : 1,197,141.12 = 485,499.96 : x
  2. Step 2: Convert to fraction form
    867,474.36/1,197,141.12 = 485,499.96/x
  3. Step 3: Cross multiply
    867,474.36x = 1,197,141.12 × 485,499.96
  4. Step 4: Simplify right side
    867,474.36x = 581,211,965,874.36
  5. Step 5: Solve for x
    x = 581,211,965,874.36/867,474.36
  6. Step 6: Final answer
    x = 670,004.78

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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.