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Finding the Fourth Proportional to 707,622, 1,061,433 and 209,024.88

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Solution

The fourth proportional to 707,622, 1,061,433 and 209,024.88 is: 313,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,622 : 1,061,433 = 209,024.88 : x
  2. Step 2: Convert to fraction form
    707,622/1,061,433 = 209,024.88/x
  3. Step 3: Cross multiply
    707,622x = 1,061,433 × 209,024.88
  4. Step 4: Simplify right side
    707,622x = 221,865,905,453.04
  5. Step 5: Solve for x
    x = 221,865,905,453.04/707,622
  6. Step 6: Final answer
    x = 313,537.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.