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Finding the Fourth Proportional to 549,446.40, 823,076.10 and 483,690.60

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Solution

The fourth proportional to 549,446.40, 823,076.10 and 483,690.60 is: 724,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,446.40 : 823,076.10 = 483,690.60 : x
  2. Step 2: Convert to fraction form
    549,446.40/823,076.10 = 483,690.60/x
  3. Step 3: Cross multiply
    549,446.40x = 823,076.10 × 483,690.60
  4. Step 4: Simplify right side
    549,446.40x = 398,114,172,654.66
  5. Step 5: Solve for x
    x = 398,114,172,654.66/549,446.40
  6. Step 6: Final answer
    x = 724,573.27

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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.