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Finding the Fourth Proportional to 622,564.71, 858,991.63 and 350,578.45

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Solution

The fourth proportional to 622,564.71, 858,991.63 and 350,578.45 is: 483,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,564.71 : 858,991.63 = 350,578.45 : x
  2. Step 2: Convert to fraction form
    622,564.71/858,991.63 = 350,578.45/x
  3. Step 3: Cross multiply
    622,564.71x = 858,991.63 × 350,578.45
  4. Step 4: Simplify right side
    622,564.71x = 301,143,954,208.37
  5. Step 5: Solve for x
    x = 301,143,954,208.37/622,564.71
  6. Step 6: Final answer
    x = 483,715.11

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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.