Home / 405,334.23-559,363.50-221,573.11

Finding the Fourth Proportional to 405,334.23, 559,363.50 and 221,573.11

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Solution

The fourth proportional to 405,334.23, 559,363.50 and 221,573.11 is: 305,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,334.23 : 559,363.50 = 221,573.11 : x
  2. Step 2: Convert to fraction form
    405,334.23/559,363.50 = 221,573.11/x
  3. Step 3: Cross multiply
    405,334.23x = 559,363.50 × 221,573.11
  4. Step 4: Simplify right side
    405,334.23x = 123,939,906,410.80
  5. Step 5: Solve for x
    x = 123,939,906,410.80/405,334.23
  6. Step 6: Final answer
    x = 305,772.12

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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.