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Finding the Fourth Proportional to 574,192.48, 792,379.84 and 319,539.36

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Solution

The fourth proportional to 574,192.48, 792,379.84 and 319,539.36 is: 440,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,192.48 : 792,379.84 = 319,539.36 : x
  2. Step 2: Convert to fraction form
    574,192.48/792,379.84 = 319,539.36/x
  3. Step 3: Cross multiply
    574,192.48x = 792,379.84 × 319,539.36
  4. Step 4: Simplify right side
    574,192.48x = 253,196,546,950.50
  5. Step 5: Solve for x
    x = 253,196,546,950.50/574,192.48
  6. Step 6: Final answer
    x = 440,961.10

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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.