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Finding the Fourth Proportional to 488,041.30, 673,503.87 and 281,195.37

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Solution

The fourth proportional to 488,041.30, 673,503.87 and 281,195.37 is: 388,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,041.30 : 673,503.87 = 281,195.37 : x
  2. Step 2: Convert to fraction form
    488,041.30/673,503.87 = 281,195.37/x
  3. Step 3: Cross multiply
    488,041.30x = 673,503.87 × 281,195.37
  4. Step 4: Simplify right side
    488,041.30x = 189,386,169,921.08
  5. Step 5: Solve for x
    x = 189,386,169,921.08/488,041.30
  6. Step 6: Final answer
    x = 388,053.57

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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.