Home / 505,976.17-698,247.80-291,111.93

Finding the Fourth Proportional to 505,976.17, 698,247.80 and 291,111.93

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Solution

The fourth proportional to 505,976.17, 698,247.80 and 291,111.93 is: 401,734.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,976.17 : 698,247.80 = 291,111.93 : x
  2. Step 2: Convert to fraction form
    505,976.17/698,247.80 = 291,111.93/x
  3. Step 3: Cross multiply
    505,976.17x = 698,247.80 × 291,111.93
  4. Step 4: Simplify right side
    505,976.17x = 203,268,264,676.25
  5. Step 5: Solve for x
    x = 203,268,264,676.25/505,976.17
  6. Step 6: Final answer
    x = 401,734.86

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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.