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Finding the Fourth Proportional to 404,479.44, 606,797.19 and 155,142

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Solution

The fourth proportional to 404,479.44, 606,797.19 and 155,142 is: 232,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,479.44 : 606,797.19 = 155,142 : x
  2. Step 2: Convert to fraction form
    404,479.44/606,797.19 = 155,142/x
  3. Step 3: Cross multiply
    404,479.44x = 606,797.19 × 155,142
  4. Step 4: Simplify right side
    404,479.44x = 94,139,729,650.98
  5. Step 5: Solve for x
    x = 94,139,729,650.98/404,479.44
  6. Step 6: Final answer
    x = 232,742.93

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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.