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Finding the Fourth Proportional to 574,216.66, 792,411.26 and 319,567.78

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Solution

The fourth proportional to 574,216.66, 792,411.26 and 319,567.78 is: 440,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,216.66 : 792,411.26 = 319,567.78 : x
  2. Step 2: Convert to fraction form
    574,216.66/792,411.26 = 319,567.78/x
  3. Step 3: Cross multiply
    574,216.66x = 792,411.26 × 319,567.78
  4. Step 4: Simplify right side
    574,216.66x = 253,229,107,205.20
  5. Step 5: Solve for x
    x = 253,229,107,205.20/574,216.66
  6. Step 6: Final answer
    x = 440,999.23

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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.