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Finding the Fourth Proportional to 478,567.62, 660,452.67 and 263,707.56

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Solution

The fourth proportional to 478,567.62, 660,452.67 and 263,707.56 is: 363,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,567.62 : 660,452.67 = 263,707.56 : x
  2. Step 2: Convert to fraction form
    478,567.62/660,452.67 = 263,707.56/x
  3. Step 3: Cross multiply
    478,567.62x = 660,452.67 × 263,707.56
  4. Step 4: Simplify right side
    478,567.62x = 174,166,362,101.19
  5. Step 5: Solve for x
    x = 174,166,362,101.19/478,567.62
  6. Step 6: Final answer
    x = 363,932.61

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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.