Home / 699,135.92-964,820.76-393,204.32

Finding the Fourth Proportional to 699,135.92, 964,820.76 and 393,204.32

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Solution

The fourth proportional to 699,135.92, 964,820.76 and 393,204.32 is: 542,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,135.92 : 964,820.76 = 393,204.32 : x
  2. Step 2: Convert to fraction form
    699,135.92/964,820.76 = 393,204.32/x
  3. Step 3: Cross multiply
    699,135.92x = 964,820.76 × 393,204.32
  4. Step 4: Simplify right side
    699,135.92x = 379,371,690,857.68
  5. Step 5: Solve for x
    x = 379,371,690,857.68/699,135.92
  6. Step 6: Final answer
    x = 542,629.38

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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.