Home / 457,233.40-685,850.10-190,905.40

Finding the Fourth Proportional to 457,233.40, 685,850.10 and 190,905.40

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Solution

The fourth proportional to 457,233.40, 685,850.10 and 190,905.40 is: 286,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,233.40 : 685,850.10 = 190,905.40 : x
  2. Step 2: Convert to fraction form
    457,233.40/685,850.10 = 190,905.40/x
  3. Step 3: Cross multiply
    457,233.40x = 685,850.10 × 190,905.40
  4. Step 4: Simplify right side
    457,233.40x = 130,932,487,680.54
  5. Step 5: Solve for x
    x = 130,932,487,680.54/457,233.40
  6. Step 6: Final answer
    x = 286,358.10

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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.