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Finding the Fourth Proportional to 488,041.36, 673,503.96 and 281,195.44

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Solution

The fourth proportional to 488,041.36, 673,503.96 and 281,195.44 is: 388,053.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,041.36 : 673,503.96 = 281,195.44 : x
  2. Step 2: Convert to fraction form
    488,041.36/673,503.96 = 281,195.44/x
  3. Step 3: Cross multiply
    488,041.36x = 673,503.96 × 281,195.44
  4. Step 4: Simplify right side
    488,041.36x = 189,386,242,373.94
  5. Step 5: Solve for x
    x = 189,386,242,373.94/488,041.36
  6. Step 6: Final answer
    x = 388,053.67

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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.