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Finding the Fourth Proportional to 493,243.38, 680,676.46 and 266,888.88

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Solution

The fourth proportional to 493,243.38, 680,676.46 and 266,888.88 is: 368,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,243.38 : 680,676.46 = 266,888.88 : x
  2. Step 2: Convert to fraction form
    493,243.38/680,676.46 = 266,888.88/x
  3. Step 3: Cross multiply
    493,243.38x = 680,676.46 × 266,888.88
  4. Step 4: Simplify right side
    493,243.38x = 181,664,978,051.77
  5. Step 5: Solve for x
    x = 181,664,978,051.77/493,243.38
  6. Step 6: Final answer
    x = 368,306.98

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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.