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Finding the Fourth Proportional to 475,897.88, 656,739.96 and 261,039.68

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Solution

The fourth proportional to 475,897.88, 656,739.96 and 261,039.68 is: 360,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,897.88 : 656,739.96 = 261,039.68 : x
  2. Step 2: Convert to fraction form
    475,897.88/656,739.96 = 261,039.68/x
  3. Step 3: Cross multiply
    475,897.88x = 656,739.96 × 261,039.68
  4. Step 4: Simplify right side
    475,897.88x = 171,435,189,001.61
  5. Step 5: Solve for x
    x = 171,435,189,001.61/475,897.88
  6. Step 6: Final answer
    x = 360,235.24

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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.