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Finding the Fourth Proportional to 367,002.60, 550,503.90 and 340,430.55

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Solution

The fourth proportional to 367,002.60, 550,503.90 and 340,430.55 is: 510,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,002.60 : 550,503.90 = 340,430.55 : x
  2. Step 2: Convert to fraction form
    367,002.60/550,503.90 = 340,430.55/x
  3. Step 3: Cross multiply
    367,002.60x = 550,503.90 × 340,430.55
  4. Step 4: Simplify right side
    367,002.60x = 187,408,345,454.15
  5. Step 5: Solve for x
    x = 187,408,345,454.15/367,002.60
  6. Step 6: Final answer
    x = 510,645.83

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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.