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Finding the Fourth Proportional to 562,872.09, 843,248.72 and 278,229.47

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Solution

The fourth proportional to 562,872.09, 843,248.72 and 278,229.47 is: 416,820.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,872.09 : 843,248.72 = 278,229.47 : x
  2. Step 2: Convert to fraction form
    562,872.09/843,248.72 = 278,229.47/x
  3. Step 3: Cross multiply
    562,872.09x = 843,248.72 × 278,229.47
  4. Step 4: Simplify right side
    562,872.09x = 234,616,638,836.39
  5. Step 5: Solve for x
    x = 234,616,638,836.39/562,872.09
  6. Step 6: Final answer
    x = 416,820.52

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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.