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Finding the Fourth Proportional to 666,513.78, 918,832.05 and 475,195.14

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Solution

The fourth proportional to 666,513.78, 918,832.05 and 475,195.14 is: 655,087.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,513.78 : 918,832.05 = 475,195.14 : x
  2. Step 2: Convert to fraction form
    666,513.78/918,832.05 = 475,195.14/x
  3. Step 3: Cross multiply
    666,513.78x = 918,832.05 × 475,195.14
  4. Step 4: Simplify right side
    666,513.78x = 436,624,524,636.24
  5. Step 5: Solve for x
    x = 436,624,524,636.24/666,513.78
  6. Step 6: Final answer
    x = 655,087.02

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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.