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Finding the Fourth Proportional to 468,664.81, 646,756.45 and 253,804.21

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Solution

The fourth proportional to 468,664.81, 646,756.45 and 253,804.21 is: 350,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,664.81 : 646,756.45 = 253,804.21 : x
  2. Step 2: Convert to fraction form
    468,664.81/646,756.45 = 253,804.21/x
  3. Step 3: Cross multiply
    468,664.81x = 646,756.45 × 253,804.21
  4. Step 4: Simplify right side
    468,664.81x = 164,149,507,603.25
  5. Step 5: Solve for x
    x = 164,149,507,603.25/468,664.81
  6. Step 6: Final answer
    x = 350,249.27

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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.