Home / 457,328.72-685,993.08-190,944.20

Finding the Fourth Proportional to 457,328.72, 685,993.08 and 190,944.20

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Solution

The fourth proportional to 457,328.72, 685,993.08 and 190,944.20 is: 286,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,328.72 : 685,993.08 = 190,944.20 : x
  2. Step 2: Convert to fraction form
    457,328.72/685,993.08 = 190,944.20/x
  3. Step 3: Cross multiply
    457,328.72x = 685,993.08 × 190,944.20
  4. Step 4: Simplify right side
    457,328.72x = 130,986,399,866.14
  5. Step 5: Solve for x
    x = 130,986,399,866.14/457,328.72
  6. Step 6: Final answer
    x = 286,416.30

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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.