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Finding the Fourth Proportional to 317,813.82, 438,474.44 and 181,798.22

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Solution

The fourth proportional to 317,813.82, 438,474.44 and 181,798.22 is: 250,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,813.82 : 438,474.44 = 181,798.22 : x
  2. Step 2: Convert to fraction form
    317,813.82/438,474.44 = 181,798.22/x
  3. Step 3: Cross multiply
    317,813.82x = 438,474.44 × 181,798.22
  4. Step 4: Simplify right side
    317,813.82x = 79,713,869,606.13
  5. Step 5: Solve for x
    x = 79,713,869,606.13/317,813.82
  6. Step 6: Final answer
    x = 250,819.39

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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.