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Finding the Fourth Proportional to 672,072.68, 927,457.50 and 366,148.11

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Solution

The fourth proportional to 672,072.68, 927,457.50 and 366,148.11 is: 505,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,072.68 : 927,457.50 = 366,148.11 : x
  2. Step 2: Convert to fraction form
    672,072.68/927,457.50 = 366,148.11/x
  3. Step 3: Cross multiply
    672,072.68x = 927,457.50 × 366,148.11
  4. Step 4: Simplify right side
    672,072.68x = 339,586,815,581.35
  5. Step 5: Solve for x
    x = 339,586,815,581.35/672,072.68
  6. Step 6: Final answer
    x = 505,282.87

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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.