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Finding the Fourth Proportional to 574,404.61, 860,656.94 and 349,080.74

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Solution

The fourth proportional to 574,404.61, 860,656.94 and 349,080.74 is: 523,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,404.61 : 860,656.94 = 349,080.74 : x
  2. Step 2: Convert to fraction form
    574,404.61/860,656.94 = 349,080.74/x
  3. Step 3: Cross multiply
    574,404.61x = 860,656.94 × 349,080.74
  4. Step 4: Simplify right side
    574,404.61x = 300,438,755,452.65
  5. Step 5: Solve for x
    x = 300,438,755,452.65/574,404.61
  6. Step 6: Final answer
    x = 523,043.77

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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.