Home / 683,941.10-943,887.58-378,010.90

Finding the Fourth Proportional to 683,941.10, 943,887.58 and 378,010.90

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Solution

The fourth proportional to 683,941.10, 943,887.58 and 378,010.90 is: 521,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,941.10 : 943,887.58 = 378,010.90 : x
  2. Step 2: Convert to fraction form
    683,941.10/943,887.58 = 378,010.90/x
  3. Step 3: Cross multiply
    683,941.10x = 943,887.58 × 378,010.90
  4. Step 4: Simplify right side
    683,941.10x = 356,799,793,614.62
  5. Step 5: Solve for x
    x = 356,799,793,614.62/683,941.10
  6. Step 6: Final answer
    x = 521,682.05

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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.