Home / 377,856.60-521,434.29-205,777.57

Finding the Fourth Proportional to 377,856.60, 521,434.29 and 205,777.57

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Solution

The fourth proportional to 377,856.60, 521,434.29 and 205,777.57 is: 283,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,856.60 : 521,434.29 = 205,777.57 : x
  2. Step 2: Convert to fraction form
    377,856.60/521,434.29 = 205,777.57/x
  3. Step 3: Cross multiply
    377,856.60x = 521,434.29 × 205,777.57
  4. Step 4: Simplify right side
    377,856.60x = 107,299,481,110.88
  5. Step 5: Solve for x
    x = 107,299,481,110.88/377,856.60
  6. Step 6: Final answer
    x = 283,968.79

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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.