Home / 457,315.83-685,974.02-190,931.13

Finding the Fourth Proportional to 457,315.83, 685,974.02 and 190,931.13

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Solution

The fourth proportional to 457,315.83, 685,974.02 and 190,931.13 is: 286,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,315.83 : 685,974.02 = 190,931.13 : x
  2. Step 2: Convert to fraction form
    457,315.83/685,974.02 = 190,931.13/x
  3. Step 3: Cross multiply
    457,315.83x = 685,974.02 × 190,931.13
  4. Step 4: Simplify right side
    457,315.83x = 130,973,794,789.24
  5. Step 5: Solve for x
    x = 130,973,794,789.24/457,315.83
  6. Step 6: Final answer
    x = 286,396.81

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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.