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Finding the Fourth Proportional to 301,335.76, 449,341.30 and 298,631.17

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Solution

The fourth proportional to 301,335.76, 449,341.30 and 298,631.17 is: 445,308.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,335.76 : 449,341.30 = 298,631.17 : x
  2. Step 2: Convert to fraction form
    301,335.76/449,341.30 = 298,631.17/x
  3. Step 3: Cross multiply
    301,335.76x = 449,341.30 × 298,631.17
  4. Step 4: Simplify right side
    301,335.76x = 134,187,318,148.32
  5. Step 5: Solve for x
    x = 134,187,318,148.32/301,335.76
  6. Step 6: Final answer
    x = 445,308.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.