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Finding the Fourth Proportional to 573,718.88, 791,671.44 and 319,028.96

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Solution

The fourth proportional to 573,718.88, 791,671.44 and 319,028.96 is: 440,226.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,718.88 : 791,671.44 = 319,028.96 : x
  2. Step 2: Convert to fraction form
    573,718.88/791,671.44 = 319,028.96/x
  3. Step 3: Cross multiply
    573,718.88x = 791,671.44 × 319,028.96
  4. Step 4: Simplify right side
    573,718.88x = 252,566,116,164.90
  5. Step 5: Solve for x
    x = 252,566,116,164.90/573,718.88
  6. Step 6: Final answer
    x = 440,226.26

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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.