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Finding the Fourth Proportional to 441,398.49, 662,143.50 and 188,705.67

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Solution

The fourth proportional to 441,398.49, 662,143.50 and 188,705.67 is: 283,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,398.49 : 662,143.50 = 188,705.67 : x
  2. Step 2: Convert to fraction form
    441,398.49/662,143.50 = 188,705.67/x
  3. Step 3: Cross multiply
    441,398.49x = 662,143.50 × 188,705.67
  4. Step 4: Simplify right side
    441,398.49x = 124,950,232,803.65
  5. Step 5: Solve for x
    x = 124,950,232,803.65/441,398.49
  6. Step 6: Final answer
    x = 283,078.07

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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.