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Finding the Fourth Proportional to 477,887.90, 659,472.69 and 260,100.82

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Solution

The fourth proportional to 477,887.90, 659,472.69 and 260,100.82 is: 358,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,887.90 : 659,472.69 = 260,100.82 : x
  2. Step 2: Convert to fraction form
    477,887.90/659,472.69 = 260,100.82/x
  3. Step 3: Cross multiply
    477,887.90x = 659,472.69 × 260,100.82
  4. Step 4: Simplify right side
    477,887.90x = 171,529,387,773.26
  5. Step 5: Solve for x
    x = 171,529,387,773.26/477,887.90
  6. Step 6: Final answer
    x = 358,932.27

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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.