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Finding the Fourth Proportional to 574,564.22, 792,891.18 and 316,436.25

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Solution

The fourth proportional to 574,564.22, 792,891.18 and 316,436.25 is: 436,677.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,564.22 : 792,891.18 = 316,436.25 : x
  2. Step 2: Convert to fraction form
    574,564.22/792,891.18 = 316,436.25/x
  3. Step 3: Cross multiply
    574,564.22x = 792,891.18 × 316,436.25
  4. Step 4: Simplify right side
    574,564.22x = 250,899,511,657.28
  5. Step 5: Solve for x
    x = 250,899,511,657.28/574,564.22
  6. Step 6: Final answer
    x = 436,677.93

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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.