Home / 514,791.21-771,944.78-190,355.15

Finding the Fourth Proportional to 514,791.21, 771,944.78 and 190,355.15

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Solution

The fourth proportional to 514,791.21, 771,944.78 and 190,355.15 is: 285,443.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,791.21 : 771,944.78 = 190,355.15 : x
  2. Step 2: Convert to fraction form
    514,791.21/771,944.78 = 190,355.15/x
  3. Step 3: Cross multiply
    514,791.21x = 771,944.78 × 190,355.15
  4. Step 4: Simplify right side
    514,791.21x = 146,943,662,452.18
  5. Step 5: Solve for x
    x = 146,943,662,452.18/514,791.21
  6. Step 6: Final answer
    x = 285,443.22

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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.