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Finding the Fourth Proportional to 388,397.74, 582,596.65 and 118,527.29

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Solution

The fourth proportional to 388,397.74, 582,596.65 and 118,527.29 is: 177,790.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,397.74 : 582,596.65 = 118,527.29 : x
  2. Step 2: Convert to fraction form
    388,397.74/582,596.65 = 118,527.29/x
  3. Step 3: Cross multiply
    388,397.74x = 582,596.65 × 118,527.29
  4. Step 4: Simplify right side
    388,397.74x = 69,053,603,544.07
  5. Step 5: Solve for x
    x = 69,053,603,544.07/388,397.74
  6. Step 6: Final answer
    x = 177,790.95

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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.