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Finding the Fourth Proportional to 388,500.66, 582,597.81 and 188,761.95

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Solution

The fourth proportional to 388,500.66, 582,597.81 and 188,761.95 is: 283,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,500.66 : 582,597.81 = 188,761.95 : x
  2. Step 2: Convert to fraction form
    388,500.66/582,597.81 = 188,761.95/x
  3. Step 3: Cross multiply
    388,500.66x = 582,597.81 × 188,761.95
  4. Step 4: Simplify right side
    388,500.66x = 109,972,298,681.33
  5. Step 5: Solve for x
    x = 109,972,298,681.33/388,500.66
  6. Step 6: Final answer
    x = 283,068.50

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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.