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Finding the Fourth Proportional to 448,555.86, 672,072.14 and 270,689.13

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Solution

The fourth proportional to 448,555.86, 672,072.14 and 270,689.13 is: 405,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,555.86 : 672,072.14 = 270,689.13 : x
  2. Step 2: Convert to fraction form
    448,555.86/672,072.14 = 270,689.13/x
  3. Step 3: Cross multiply
    448,555.86x = 672,072.14 × 270,689.13
  4. Step 4: Simplify right side
    448,555.86x = 181,922,622,873.84
  5. Step 5: Solve for x
    x = 181,922,622,873.84/448,555.86
  6. Step 6: Final answer
    x = 405,574.06

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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.