Home / 812,318.27-1,121,117.27-468,087.20

Finding the Fourth Proportional to 812,318.27, 1,121,117.27 and 468,087.20

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Solution

The fourth proportional to 812,318.27, 1,121,117.27 and 468,087.20 is: 646,028.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,318.27 : 1,121,117.27 = 468,087.20 : x
  2. Step 2: Convert to fraction form
    812,318.27/1,121,117.27 = 468,087.20/x
  3. Step 3: Cross multiply
    812,318.27x = 1,121,117.27 × 468,087.20
  4. Step 4: Simplify right side
    812,318.27x = 524,780,643,785.94
  5. Step 5: Solve for x
    x = 524,780,643,785.94/812,318.27
  6. Step 6: Final answer
    x = 646,028.37

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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.