Home / 394,718.10-592,163.55-128,433.30

Finding the Fourth Proportional to 394,718.10, 592,163.55 and 128,433.30

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Solution

The fourth proportional to 394,718.10, 592,163.55 and 128,433.30 is: 192,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,718.10 : 592,163.55 = 128,433.30 : x
  2. Step 2: Convert to fraction form
    394,718.10/592,163.55 = 128,433.30/x
  3. Step 3: Cross multiply
    394,718.10x = 592,163.55 × 128,433.30
  4. Step 4: Simplify right side
    394,718.10x = 76,053,518,866.22
  5. Step 5: Solve for x
    x = 76,053,518,866.22/394,718.10
  6. Step 6: Final answer
    x = 192,678.06

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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.