Home / 439,615.35-659,330.75-123,998.45

Finding the Fourth Proportional to 439,615.35, 659,330.75 and 123,998.45

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Solution

The fourth proportional to 439,615.35, 659,330.75 and 123,998.45 is: 185,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,615.35 : 659,330.75 = 123,998.45 : x
  2. Step 2: Convert to fraction form
    439,615.35/659,330.75 = 123,998.45/x
  3. Step 3: Cross multiply
    439,615.35x = 659,330.75 × 123,998.45
  4. Step 4: Simplify right side
    439,615.35x = 81,755,991,037.34
  5. Step 5: Solve for x
    x = 81,755,991,037.34/439,615.35
  6. Step 6: Final answer
    x = 185,971.65

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1.5x scale

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.