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Finding the Fourth Proportional to 580,603.71, 870,961.46 and 225,645.51

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Solution

The fourth proportional to 580,603.71, 870,961.46 and 225,645.51 is: 338,489.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,603.71 : 870,961.46 = 225,645.51 : x
  2. Step 2: Convert to fraction form
    580,603.71/870,961.46 = 225,645.51/x
  3. Step 3: Cross multiply
    580,603.71x = 870,961.46 × 225,645.51
  4. Step 4: Simplify right side
    580,603.71x = 196,528,541,703.82
  5. Step 5: Solve for x
    x = 196,528,541,703.82/580,603.71
  6. Step 6: Final answer
    x = 338,489.99

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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.