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Finding the Fourth Proportional to 666,511.78, 918,829.29 and 475,193.14

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Solution

The fourth proportional to 666,511.78, 918,829.29 and 475,193.14 is: 655,084.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,511.78 : 918,829.29 = 475,193.14 : x
  2. Step 2: Convert to fraction form
    666,511.78/918,829.29 = 475,193.14/x
  3. Step 3: Cross multiply
    666,511.78x = 918,829.29 × 475,193.14
  4. Step 4: Simplify right side
    666,511.78x = 436,621,375,439.07
  5. Step 5: Solve for x
    x = 436,621,375,439.07/666,511.78
  6. Step 6: Final answer
    x = 655,084.26

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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.