Home / 628,959.39-867,940.27-384,353.16

Finding the Fourth Proportional to 628,959.39, 867,940.27 and 384,353.16

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Solution

The fourth proportional to 628,959.39, 867,940.27 and 384,353.16 is: 530,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,959.39 : 867,940.27 = 384,353.16 : x
  2. Step 2: Convert to fraction form
    628,959.39/867,940.27 = 384,353.16/x
  3. Step 3: Cross multiply
    628,959.39x = 867,940.27 × 384,353.16
  4. Step 4: Simplify right side
    628,959.39x = 333,595,584,504.87
  5. Step 5: Solve for x
    x = 333,595,584,504.87/628,959.39
  6. Step 6: Final answer
    x = 530,392.88

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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.