Home / 654,381.63-981,584.75-205,092.55

Finding the Fourth Proportional to 654,381.63, 981,584.75 and 205,092.55

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Solution

The fourth proportional to 654,381.63, 981,584.75 and 205,092.55 is: 307,642.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,381.63 : 981,584.75 = 205,092.55 : x
  2. Step 2: Convert to fraction form
    654,381.63/981,584.75 = 205,092.55/x
  3. Step 3: Cross multiply
    654,381.63x = 981,584.75 × 205,092.55
  4. Step 4: Simplify right side
    654,381.63x = 201,315,719,418.61
  5. Step 5: Solve for x
    x = 201,315,719,418.61/654,381.63
  6. Step 6: Final answer
    x = 307,642.68

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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.