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Finding the Fourth Proportional to 472,749.87, 652,449.47 and 263,218.86

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Solution

The fourth proportional to 472,749.87, 652,449.47 and 263,218.86 is: 363,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,749.87 : 652,449.47 = 263,218.86 : x
  2. Step 2: Convert to fraction form
    472,749.87/652,449.47 = 263,218.86/x
  3. Step 3: Cross multiply
    472,749.87x = 652,449.47 × 263,218.86
  4. Step 4: Simplify right side
    472,749.87x = 171,737,005,701.00
  5. Step 5: Solve for x
    x = 171,737,005,701.00/472,749.87
  6. Step 6: Final answer
    x = 363,272.45

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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.