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Finding the Fourth Proportional to 633,086.72, 873,662.22 and 346,633.46

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Solution

The fourth proportional to 633,086.72, 873,662.22 and 346,633.46 is: 478,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,086.72 : 873,662.22 = 346,633.46 : x
  2. Step 2: Convert to fraction form
    633,086.72/873,662.22 = 346,633.46/x
  3. Step 3: Cross multiply
    633,086.72x = 873,662.22 × 346,633.46
  4. Step 4: Simplify right side
    633,086.72x = 302,840,558,189.88
  5. Step 5: Solve for x
    x = 302,840,558,189.88/633,086.72
  6. Step 6: Final answer
    x = 478,355.57

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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.