Home / 1,678,621.60-2,517,640.80-613,115.20

Finding the Fourth Proportional to 1,678,621.60, 2,517,640.80 and 613,115.20

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Solution

The fourth proportional to 1,678,621.60, 2,517,640.80 and 613,115.20 is: 919,566.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,621.60 : 2,517,640.80 = 613,115.20 : x
  2. Step 2: Convert to fraction form
    1,678,621.60/2,517,640.80 = 613,115.20/x
  3. Step 3: Cross multiply
    1,678,621.60x = 2,517,640.80 × 613,115.20
  4. Step 4: Simplify right side
    1,678,621.60x = 1,543,603,842,620.16
  5. Step 5: Solve for x
    x = 1,543,603,842,620.16/1,678,621.60
  6. Step 6: Final answer
    x = 919,566.29

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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.