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Finding the Fourth Proportional to 574,203.45, 860,726.19 and 361,123.64

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Solution

The fourth proportional to 574,203.45, 860,726.19 and 361,123.64 is: 541,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,203.45 : 860,726.19 = 361,123.64 : x
  2. Step 2: Convert to fraction form
    574,203.45/860,726.19 = 361,123.64/x
  3. Step 3: Cross multiply
    574,203.45x = 860,726.19 × 361,123.64
  4. Step 4: Simplify right side
    574,203.45x = 310,828,570,472.50
  5. Step 5: Solve for x
    x = 310,828,570,472.50/574,203.45
  6. Step 6: Final answer
    x = 541,321.32

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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.