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Finding the Fourth Proportional to 574,080.48, 860,558.58 and 213,987.69

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Solution

The fourth proportional to 574,080.48, 860,558.58 and 213,987.69 is: 320,772.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,080.48 : 860,558.58 = 213,987.69 : x
  2. Step 2: Convert to fraction form
    574,080.48/860,558.58 = 213,987.69/x
  3. Step 3: Cross multiply
    574,080.48x = 860,558.58 × 213,987.69
  4. Step 4: Simplify right side
    574,080.48x = 184,148,942,643.88
  5. Step 5: Solve for x
    x = 184,148,942,643.88/574,080.48
  6. Step 6: Final answer
    x = 320,772.00

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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.