Home / 465,145.20-697,717.80-128,185.20

Finding the Fourth Proportional to 465,145.20, 697,717.80 and 128,185.20

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Solution

The fourth proportional to 465,145.20, 697,717.80 and 128,185.20 is: 192,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,145.20 : 697,717.80 = 128,185.20 : x
  2. Step 2: Convert to fraction form
    465,145.20/697,717.80 = 128,185.20/x
  3. Step 3: Cross multiply
    465,145.20x = 697,717.80 × 128,185.20
  4. Step 4: Simplify right side
    465,145.20x = 89,437,095,736.56
  5. Step 5: Solve for x
    x = 89,437,095,736.56/465,145.20
  6. Step 6: Final answer
    x = 192,277.80

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Similar ratio
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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.