Home / 816,905.92-1,127,163.52-477,308.48

Finding the Fourth Proportional to 816,905.92, 1,127,163.52 and 477,308.48

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Solution

The fourth proportional to 816,905.92, 1,127,163.52 and 477,308.48 is: 658,588.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,905.92 : 1,127,163.52 = 477,308.48 : x
  2. Step 2: Convert to fraction form
    816,905.92/1,127,163.52 = 477,308.48/x
  3. Step 3: Cross multiply
    816,905.92x = 1,127,163.52 × 477,308.48
  4. Step 4: Simplify right side
    816,905.92x = 538,004,706,442.65
  5. Step 5: Solve for x
    x = 538,004,706,442.65/816,905.92
  6. Step 6: Final answer
    x = 658,588.33

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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.