Home / 505,921.04-698,171.28-279,566.54

Finding the Fourth Proportional to 505,921.04, 698,171.28 and 279,566.54

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Solution

The fourth proportional to 505,921.04, 698,171.28 and 279,566.54 is: 385,801.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,921.04 : 698,171.28 = 279,566.54 : x
  2. Step 2: Convert to fraction form
    505,921.04/698,171.28 = 279,566.54/x
  3. Step 3: Cross multiply
    505,921.04x = 698,171.28 × 279,566.54
  4. Step 4: Simplify right side
    505,921.04x = 195,185,325,586.12
  5. Step 5: Solve for x
    x = 195,185,325,586.12/505,921.04
  6. Step 6: Final answer
    x = 385,801.96

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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.