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Finding the Fourth Proportional to 489,034.80, 733,552.20 and 370,936.80

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Solution

The fourth proportional to 489,034.80, 733,552.20 and 370,936.80 is: 556,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,034.80 : 733,552.20 = 370,936.80 : x
  2. Step 2: Convert to fraction form
    489,034.80/733,552.20 = 370,936.80/x
  3. Step 3: Cross multiply
    489,034.80x = 733,552.20 × 370,936.80
  4. Step 4: Simplify right side
    489,034.80x = 272,101,505,700.96
  5. Step 5: Solve for x
    x = 272,101,505,700.96/489,034.80
  6. Step 6: Final answer
    x = 556,405.20

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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.