Home / 598,911.40-826,636.62-394,998.76

Finding the Fourth Proportional to 598,911.40, 826,636.62 and 394,998.76

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Solution

The fourth proportional to 598,911.40, 826,636.62 and 394,998.76 is: 545,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,911.40 : 826,636.62 = 394,998.76 : x
  2. Step 2: Convert to fraction form
    598,911.40/826,636.62 = 394,998.76/x
  3. Step 3: Cross multiply
    598,911.40x = 826,636.62 × 394,998.76
  4. Step 4: Simplify right side
    598,911.40x = 326,520,439,870.59
  5. Step 5: Solve for x
    x = 326,520,439,870.59/598,911.40
  6. Step 6: Final answer
    x = 545,189.89

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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.