Home / 683,941.11-943,887.56-378,010.91

Finding the Fourth Proportional to 683,941.11, 943,887.56 and 378,010.91

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Solution

The fourth proportional to 683,941.11, 943,887.56 and 378,010.91 is: 521,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,941.11 : 943,887.56 = 378,010.91 : x
  2. Step 2: Convert to fraction form
    683,941.11/943,887.56 = 378,010.91/x
  3. Step 3: Cross multiply
    683,941.11x = 943,887.56 × 378,010.91
  4. Step 4: Simplify right side
    683,941.11x = 356,799,795,493.28
  5. Step 5: Solve for x
    x = 356,799,795,493.28/683,941.11
  6. Step 6: Final answer
    x = 521,682.04

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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.