Home / 539,972.35-809,477.21-255,485.34

Finding the Fourth Proportional to 539,972.35, 809,477.21 and 255,485.34

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Solution

The fourth proportional to 539,972.35, 809,477.21 and 255,485.34 is: 383,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,972.35 : 809,477.21 = 255,485.34 : x
  2. Step 2: Convert to fraction form
    539,972.35/809,477.21 = 255,485.34/x
  3. Step 3: Cross multiply
    539,972.35x = 809,477.21 × 255,485.34
  4. Step 4: Simplify right side
    539,972.35x = 206,809,561,396.73
  5. Step 5: Solve for x
    x = 206,809,561,396.73/539,972.35
  6. Step 6: Final answer
    x = 383,000.28

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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.