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Finding the Fourth Proportional to 874,457.73, 1,207,308.83 and 713,696.22

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Solution

The fourth proportional to 874,457.73, 1,207,308.83 and 713,696.22 is: 985,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,457.73 : 1,207,308.83 = 713,696.22 : x
  2. Step 2: Convert to fraction form
    874,457.73/1,207,308.83 = 713,696.22/x
  3. Step 3: Cross multiply
    874,457.73x = 1,207,308.83 × 713,696.22
  4. Step 4: Simplify right side
    874,457.73x = 861,651,744,775.14
  5. Step 5: Solve for x
    x = 861,651,744,775.14/874,457.73
  6. Step 6: Final answer
    x = 985,355.51

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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.