Home / 539,623.67-809,371.03-419,800.22

Finding the Fourth Proportional to 539,623.67, 809,371.03 and 419,800.22

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Solution

The fourth proportional to 539,623.67, 809,371.03 and 419,800.22 is: 629,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,623.67 : 809,371.03 = 419,800.22 : x
  2. Step 2: Convert to fraction form
    539,623.67/809,371.03 = 419,800.22/x
  3. Step 3: Cross multiply
    539,623.67x = 809,371.03 × 419,800.22
  4. Step 4: Simplify right side
    539,623.67x = 339,774,130,309.77
  5. Step 5: Solve for x
    x = 339,774,130,309.77/539,623.67
  6. Step 6: Final answer
    x = 629,650.17

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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.