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Finding the Fourth Proportional to 470,651.59, 649,503.30 and 255,791.62

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Solution

The fourth proportional to 470,651.59, 649,503.30 and 255,791.62 is: 352,994.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,651.59 : 649,503.30 = 255,791.62 : x
  2. Step 2: Convert to fraction form
    470,651.59/649,503.30 = 255,791.62/x
  3. Step 3: Cross multiply
    470,651.59x = 649,503.30 × 255,791.62
  4. Step 4: Simplify right side
    470,651.59x = 166,137,501,302.35
  5. Step 5: Solve for x
    x = 166,137,501,302.35/470,651.59
  6. Step 6: Final answer
    x = 352,994.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.