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Finding the Fourth Proportional to 584,212.60, 876,318.90 and 331,395.40

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Solution

The fourth proportional to 584,212.60, 876,318.90 and 331,395.40 is: 497,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,212.60 : 876,318.90 = 331,395.40 : x
  2. Step 2: Convert to fraction form
    584,212.60/876,318.90 = 331,395.40/x
  3. Step 3: Cross multiply
    584,212.60x = 876,318.90 × 331,395.40
  4. Step 4: Simplify right side
    584,212.60x = 290,408,052,393.06
  5. Step 5: Solve for x
    x = 290,408,052,393.06/584,212.60
  6. Step 6: Final answer
    x = 497,093.10

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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.