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Finding the Fourth Proportional to 468,655.65, 646,745.40 and 253,796.04

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Solution

The fourth proportional to 468,655.65, 646,745.40 and 253,796.04 is: 350,238.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,655.65 : 646,745.40 = 253,796.04 : x
  2. Step 2: Convert to fraction form
    468,655.65/646,745.40 = 253,796.04/x
  3. Step 3: Cross multiply
    468,655.65x = 646,745.40 × 253,796.04
  4. Step 4: Simplify right side
    468,655.65x = 164,141,421,408.22
  5. Step 5: Solve for x
    x = 164,141,421,408.22/468,655.65
  6. Step 6: Final answer
    x = 350,238.86

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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.