Home / 663,117.14-993,967.50-378,194.28

Finding the Fourth Proportional to 663,117.14, 993,967.50 and 378,194.28

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Solution

The fourth proportional to 663,117.14, 993,967.50 and 378,194.28 is: 566,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,117.14 : 993,967.50 = 378,194.28 : x
  2. Step 2: Convert to fraction form
    663,117.14/993,967.50 = 378,194.28/x
  3. Step 3: Cross multiply
    663,117.14x = 993,967.50 × 378,194.28
  4. Step 4: Simplify right side
    663,117.14x = 375,912,823,005.90
  5. Step 5: Solve for x
    x = 375,912,823,005.90/663,117.14
  6. Step 6: Final answer
    x = 566,887.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.