Home / 628,533.16-867,395.32-356,612.51

Finding the Fourth Proportional to 628,533.16, 867,395.32 and 356,612.51

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Solution

The fourth proportional to 628,533.16, 867,395.32 and 356,612.51 is: 492,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,533.16 : 867,395.32 = 356,612.51 : x
  2. Step 2: Convert to fraction form
    628,533.16/867,395.32 = 356,612.51/x
  3. Step 3: Cross multiply
    628,533.16x = 867,395.32 × 356,612.51
  4. Step 4: Simplify right side
    628,533.16x = 309,324,023,504.41
  5. Step 5: Solve for x
    x = 309,324,023,504.41/628,533.16
  6. Step 6: Final answer
    x = 492,136.37

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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.