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Finding the Fourth Proportional to 672,957, 1,009,626.18 and 273,884.19

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Solution

The fourth proportional to 672,957, 1,009,626.18 and 273,884.19 is: 410,903.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,957 : 1,009,626.18 = 273,884.19 : x
  2. Step 2: Convert to fraction form
    672,957/1,009,626.18 = 273,884.19/x
  3. Step 3: Cross multiply
    672,957x = 1,009,626.18 × 273,884.19
  4. Step 4: Simplify right side
    672,957x = 276,520,648,512.09
  5. Step 5: Solve for x
    x = 276,520,648,512.09/672,957
  6. Step 6: Final answer
    x = 410,903.89

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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.