Home / 394,866.15-592,298.76-128,626.23

Finding the Fourth Proportional to 394,866.15, 592,298.76 and 128,626.23

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Solution

The fourth proportional to 394,866.15, 592,298.76 and 128,626.23 is: 192,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,866.15 : 592,298.76 = 128,626.23 : x
  2. Step 2: Convert to fraction form
    394,866.15/592,298.76 = 128,626.23/x
  3. Step 3: Cross multiply
    394,866.15x = 592,298.76 × 128,626.23
  4. Step 4: Simplify right side
    394,866.15x = 76,185,156,532.47
  5. Step 5: Solve for x
    x = 76,185,156,532.47/394,866.15
  6. Step 6: Final answer
    x = 192,939.19

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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.