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Finding the Fourth Proportional to 574,521.57, 792,825.71 and 319,867.29

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Solution

The fourth proportional to 574,521.57, 792,825.71 and 319,867.29 is: 441,409.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,521.57 : 792,825.71 = 319,867.29 : x
  2. Step 2: Convert to fraction form
    574,521.57/792,825.71 = 319,867.29/x
  3. Step 3: Cross multiply
    574,521.57x = 792,825.71 × 319,867.29
  4. Step 4: Simplify right side
    574,521.57x = 253,599,009,700.69
  5. Step 5: Solve for x
    x = 253,599,009,700.69/574,521.57
  6. Step 6: Final answer
    x = 441,409.03

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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.