Home / 498,201.62-687,338.58-383,515.34

Finding the Fourth Proportional to 498,201.62, 687,338.58 and 383,515.34

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Solution

The fourth proportional to 498,201.62, 687,338.58 and 383,515.34 is: 529,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,201.62 : 687,338.58 = 383,515.34 : x
  2. Step 2: Convert to fraction form
    498,201.62/687,338.58 = 383,515.34/x
  3. Step 3: Cross multiply
    498,201.62x = 687,338.58 × 383,515.34
  4. Step 4: Simplify right side
    498,201.62x = 263,604,889,203.82
  5. Step 5: Solve for x
    x = 263,604,889,203.82/498,201.62
  6. Step 6: Final answer
    x = 529,112.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.