Home / 394,868.96-592,302.98-128,629.05

Finding the Fourth Proportional to 394,868.96, 592,302.98 and 128,629.05

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Solution

The fourth proportional to 394,868.96, 592,302.98 and 128,629.05 is: 192,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,868.96 : 592,302.98 = 128,629.05 : x
  2. Step 2: Convert to fraction form
    394,868.96/592,302.98 = 128,629.05/x
  3. Step 3: Cross multiply
    394,868.96x = 592,302.98 × 128,629.05
  4. Step 4: Simplify right side
    394,868.96x = 76,187,369,629.57
  5. Step 5: Solve for x
    x = 76,187,369,629.57/394,868.96
  6. Step 6: Final answer
    x = 192,943.43

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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.