Home / 881,324.52-1,216,227.80-478,916.52

Finding the Fourth Proportional to 881,324.52, 1,216,227.80 and 478,916.52

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Solution

The fourth proportional to 881,324.52, 1,216,227.80 and 478,916.52 is: 660,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,324.52 : 1,216,227.80 = 478,916.52 : x
  2. Step 2: Convert to fraction form
    881,324.52/1,216,227.80 = 478,916.52/x
  3. Step 3: Cross multiply
    881,324.52x = 1,216,227.80 × 478,916.52
  4. Step 4: Simplify right side
    881,324.52x = 582,471,585,503.26
  5. Step 5: Solve for x
    x = 582,471,585,503.26/881,324.52
  6. Step 6: Final answer
    x = 660,904.78

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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.