Home / 457,135.41-685,812.60-190,747.74

Finding the Fourth Proportional to 457,135.41, 685,812.60 and 190,747.74

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Solution

The fourth proportional to 457,135.41, 685,812.60 and 190,747.74 is: 286,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,135.41 : 685,812.60 = 190,747.74 : x
  2. Step 2: Convert to fraction form
    457,135.41/685,812.60 = 190,747.74/x
  3. Step 3: Cross multiply
    457,135.41x = 685,812.60 × 190,747.74
  4. Step 4: Simplify right side
    457,135.41x = 130,817,203,513.52
  5. Step 5: Solve for x
    x = 130,817,203,513.52/457,135.41
  6. Step 6: Final answer
    x = 286,167.29

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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.