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Finding the Fourth Proportional to 574,823.78, 793,218.86 and 345,244.65

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Solution

The fourth proportional to 574,823.78, 793,218.86 and 345,244.65 is: 476,414.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,823.78 : 793,218.86 = 345,244.65 : x
  2. Step 2: Convert to fraction form
    574,823.78/793,218.86 = 345,244.65/x
  3. Step 3: Cross multiply
    574,823.78x = 793,218.86 × 345,244.65
  4. Step 4: Simplify right side
    574,823.78x = 273,854,562,864.89
  5. Step 5: Solve for x
    x = 273,854,562,864.89/574,823.78
  6. Step 6: Final answer
    x = 476,414.82

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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.