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Finding the Fourth Proportional to 574,846.61, 793,312.80 and 320,197.73

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Solution

The fourth proportional to 574,846.61, 793,312.80 and 320,197.73 is: 441,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,846.61 : 793,312.80 = 320,197.73 : x
  2. Step 2: Convert to fraction form
    574,846.61/793,312.80 = 320,197.73/x
  3. Step 3: Cross multiply
    574,846.61x = 793,312.80 × 320,197.73
  4. Step 4: Simplify right side
    574,846.61x = 254,016,957,739.94
  5. Step 5: Solve for x
    x = 254,016,957,739.94/574,846.61
  6. Step 6: Final answer
    x = 441,886.50

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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.