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Finding the Fourth Proportional to 304,676.55, 420,448.50 and 168,707.58

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Solution

The fourth proportional to 304,676.55, 420,448.50 and 168,707.58 is: 232,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,676.55 : 420,448.50 = 168,707.58 : x
  2. Step 2: Convert to fraction form
    304,676.55/420,448.50 = 168,707.58/x
  3. Step 3: Cross multiply
    304,676.55x = 420,448.50 × 168,707.58
  4. Step 4: Simplify right side
    304,676.55x = 70,932,848,949.63
  5. Step 5: Solve for x
    x = 70,932,848,949.63/304,676.55
  6. Step 6: Final answer
    x = 232,813.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.