Home / 628,665.39-947,198.55-568,769.87

Finding the Fourth Proportional to 628,665.39, 947,198.55 and 568,769.87

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Solution

The fourth proportional to 628,665.39, 947,198.55 and 568,769.87 is: 856,955.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,665.39 : 947,198.55 = 568,769.87 : x
  2. Step 2: Convert to fraction form
    628,665.39/947,198.55 = 568,769.87/x
  3. Step 3: Cross multiply
    628,665.39x = 947,198.55 × 568,769.87
  4. Step 4: Simplify right side
    628,665.39x = 538,737,991,411.70
  5. Step 5: Solve for x
    x = 538,737,991,411.70/628,665.39
  6. Step 6: Final answer
    x = 856,955.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.