Home / 457,240.20-685,860.30-190,998.60

Finding the Fourth Proportional to 457,240.20, 685,860.30 and 190,998.60

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Solution

The fourth proportional to 457,240.20, 685,860.30 and 190,998.60 is: 286,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,240.20 : 685,860.30 = 190,998.60 : x
  2. Step 2: Convert to fraction form
    457,240.20/685,860.30 = 190,998.60/x
  3. Step 3: Cross multiply
    457,240.20x = 685,860.30 × 190,998.60
  4. Step 4: Simplify right side
    457,240.20x = 130,998,357,095.58
  5. Step 5: Solve for x
    x = 130,998,357,095.58/457,240.20
  6. Step 6: Final answer
    x = 286,497.90

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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.