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Finding the Fourth Proportional to 661,527.87, 911,942.16 and 467,593.42

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Solution

The fourth proportional to 661,527.87, 911,942.16 and 467,593.42 is: 644,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,527.87 : 911,942.16 = 467,593.42 : x
  2. Step 2: Convert to fraction form
    661,527.87/911,942.16 = 467,593.42/x
  3. Step 3: Cross multiply
    661,527.87x = 911,942.16 × 467,593.42
  4. Step 4: Simplify right side
    661,527.87x = 426,418,153,053.12
  5. Step 5: Solve for x
    x = 426,418,153,053.12/661,527.87
  6. Step 6: Final answer
    x = 644,595.90

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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.