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Finding the Fourth Proportional to 336,907.35, 467,061.19 and 318,930.21

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Solution

The fourth proportional to 336,907.35, 467,061.19 and 318,930.21 is: 442,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,907.35 : 467,061.19 = 318,930.21 : x
  2. Step 2: Convert to fraction form
    336,907.35/467,061.19 = 318,930.21/x
  3. Step 3: Cross multiply
    336,907.35x = 467,061.19 × 318,930.21
  4. Step 4: Simplify right side
    336,907.35x = 148,959,922,612.22
  5. Step 5: Solve for x
    x = 148,959,922,612.22/336,907.35
  6. Step 6: Final answer
    x = 442,139.13

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.