Home / 621,110.54-857,025.60-349,140.62

Finding the Fourth Proportional to 621,110.54, 857,025.60 and 349,140.62

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Solution

The fourth proportional to 621,110.54, 857,025.60 and 349,140.62 is: 481,753.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,110.54 : 857,025.60 = 349,140.62 : x
  2. Step 2: Convert to fraction form
    621,110.54/857,025.60 = 349,140.62/x
  3. Step 3: Cross multiply
    621,110.54x = 857,025.60 × 349,140.62
  4. Step 4: Simplify right side
    621,110.54x = 299,222,449,339.87
  5. Step 5: Solve for x
    x = 299,222,449,339.87/621,110.54
  6. Step 6: Final answer
    x = 481,753.94

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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.