Home / 539,121.40-806,999.26-397,126.76

Finding the Fourth Proportional to 539,121.40, 806,999.26 and 397,126.76

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Solution

The fourth proportional to 539,121.40, 806,999.26 and 397,126.76 is: 594,450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,121.40 : 806,999.26 = 397,126.76 : x
  2. Step 2: Convert to fraction form
    539,121.40/806,999.26 = 397,126.76/x
  3. Step 3: Cross multiply
    539,121.40x = 806,999.26 × 397,126.76
  4. Step 4: Simplify right side
    539,121.40x = 320,481,001,446.20
  5. Step 5: Solve for x
    x = 320,481,001,446.20/539,121.40
  6. Step 6: Final answer
    x = 594,450.53

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1.5x scale

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.