Home / 457,156.40-685,844.12-190,768.76

Finding the Fourth Proportional to 457,156.40, 685,844.12 and 190,768.76

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Solution

The fourth proportional to 457,156.40, 685,844.12 and 190,768.76 is: 286,198.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,156.40 : 685,844.12 = 190,768.76 : x
  2. Step 2: Convert to fraction form
    457,156.40/685,844.12 = 190,768.76/x
  3. Step 3: Cross multiply
    457,156.40x = 685,844.12 × 190,768.76
  4. Step 4: Simplify right side
    457,156.40x = 130,837,632,325.69
  5. Step 5: Solve for x
    x = 130,837,632,325.69/457,156.40
  6. Step 6: Final answer
    x = 286,198.84

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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.