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Finding the Fourth Proportional to 892,064.60, 1,337,708.10 and 359,408.60

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Solution

The fourth proportional to 892,064.60, 1,337,708.10 and 359,408.60 is: 538,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,064.60 : 1,337,708.10 = 359,408.60 : x
  2. Step 2: Convert to fraction form
    892,064.60/1,337,708.10 = 359,408.60/x
  3. Step 3: Cross multiply
    892,064.60x = 1,337,708.10 × 359,408.60
  4. Step 4: Simplify right side
    892,064.60x = 480,783,795,429.66
  5. Step 5: Solve for x
    x = 480,783,795,429.66/892,064.60
  6. Step 6: Final answer
    x = 538,956.25

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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.