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Finding the Fourth Proportional to 549,483.57, 823,228.68 and 405,745.21

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Solution

The fourth proportional to 549,483.57, 823,228.68 and 405,745.21 is: 607,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,483.57 : 823,228.68 = 405,745.21 : x
  2. Step 2: Convert to fraction form
    549,483.57/823,228.68 = 405,745.21/x
  3. Step 3: Cross multiply
    549,483.57x = 823,228.68 × 405,745.21
  4. Step 4: Simplify right side
    549,483.57x = 334,021,093,644.62
  5. Step 5: Solve for x
    x = 334,021,093,644.62/549,483.57
  6. Step 6: Final answer
    x = 607,881.86

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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.