Home / 678,943.60-936,552.42-423,851.92

Finding the Fourth Proportional to 678,943.60, 936,552.42 and 423,851.92

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Solution

The fourth proportional to 678,943.60, 936,552.42 and 423,851.92 is: 584,672.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,943.60 : 936,552.42 = 423,851.92 : x
  2. Step 2: Convert to fraction form
    678,943.60/936,552.42 = 423,851.92/x
  3. Step 3: Cross multiply
    678,943.60x = 936,552.42 × 423,851.92
  4. Step 4: Simplify right side
    678,943.60x = 396,959,541,910.24
  5. Step 5: Solve for x
    x = 396,959,541,910.24/678,943.60
  6. Step 6: Final answer
    x = 584,672.34

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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.