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Finding the Fourth Proportional to 574,405.11, 860,657.68 and 349,081.23

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Solution

The fourth proportional to 574,405.11, 860,657.68 and 349,081.23 is: 523,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,405.11 : 860,657.68 = 349,081.23 : x
  2. Step 2: Convert to fraction form
    574,405.11/860,657.68 = 349,081.23/x
  3. Step 3: Cross multiply
    574,405.11x = 860,657.68 × 349,081.23
  4. Step 4: Simplify right side
    574,405.11x = 300,439,441,543.35
  5. Step 5: Solve for x
    x = 300,439,441,543.35/574,405.11
  6. Step 6: Final answer
    x = 523,044.51

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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.