Home / 505,938.08-698,194.32-279,581.60

Finding the Fourth Proportional to 505,938.08, 698,194.32 and 279,581.60

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Solution

The fourth proportional to 505,938.08, 698,194.32 and 279,581.60 is: 385,822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,938.08 : 698,194.32 = 279,581.60 : x
  2. Step 2: Convert to fraction form
    505,938.08/698,194.32 = 279,581.60/x
  3. Step 3: Cross multiply
    505,938.08x = 698,194.32 × 279,581.60
  4. Step 4: Simplify right side
    505,938.08x = 195,202,285,096.51
  5. Step 5: Solve for x
    x = 195,202,285,096.51/505,938.08
  6. Step 6: Final answer
    x = 385,822.48

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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.