Home / 528,105-792,372.82-191,181.24

Finding the Fourth Proportional to 528,105, 792,372.82 and 191,181.24

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Solution

The fourth proportional to 528,105, 792,372.82 and 191,181.24 is: 286,849.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,105 : 792,372.82 = 191,181.24 : x
  2. Step 2: Convert to fraction form
    528,105/792,372.82 = 191,181.24/x
  3. Step 3: Cross multiply
    528,105x = 792,372.82 × 191,181.24
  4. Step 4: Simplify right side
    528,105x = 151,486,818,269.90
  5. Step 5: Solve for x
    x = 151,486,818,269.90/528,105
  6. Step 6: Final answer
    x = 286,849.81

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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.