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Finding the Fourth Proportional to 479,625.44, 719,269.27 and 159,690.42

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Solution

The fourth proportional to 479,625.44, 719,269.27 and 159,690.42 is: 239,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,625.44 : 719,269.27 = 159,690.42 : x
  2. Step 2: Convert to fraction form
    479,625.44/719,269.27 = 159,690.42/x
  3. Step 3: Cross multiply
    479,625.44x = 719,269.27 × 159,690.42
  4. Step 4: Simplify right side
    479,625.44x = 114,860,411,420.17
  5. Step 5: Solve for x
    x = 114,860,411,420.17/479,625.44
  6. Step 6: Final answer
    x = 239,479.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.