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Finding the Fourth Proportional to 378,653.67, 567,597.24 and 245,618.46

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Solution

The fourth proportional to 378,653.67, 567,597.24 and 245,618.46 is: 368,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,653.67 : 567,597.24 = 245,618.46 : x
  2. Step 2: Convert to fraction form
    378,653.67/567,597.24 = 245,618.46/x
  3. Step 3: Cross multiply
    378,653.67x = 567,597.24 × 245,618.46
  4. Step 4: Simplify right side
    378,653.67x = 139,412,359,989.05
  5. Step 5: Solve for x
    x = 139,412,359,989.05/378,653.67
  6. Step 6: Final answer
    x = 368,179.08

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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.