Home / 662,135.38-993,442.83-409,120.54

Finding the Fourth Proportional to 662,135.38, 993,442.83 and 409,120.54

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Solution

The fourth proportional to 662,135.38, 993,442.83 and 409,120.54 is: 613,828.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,135.38 : 993,442.83 = 409,120.54 : x
  2. Step 2: Convert to fraction form
    662,135.38/993,442.83 = 409,120.54/x
  3. Step 3: Cross multiply
    662,135.38x = 993,442.83 × 409,120.54
  4. Step 4: Simplify right side
    662,135.38x = 406,437,867,068.73
  5. Step 5: Solve for x
    x = 406,437,867,068.73/662,135.38
  6. Step 6: Final answer
    x = 613,828.95

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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.