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Finding the Fourth Proportional to 586,396.30, 809,187.26 and 324,732.80

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Solution

The fourth proportional to 586,396.30, 809,187.26 and 324,732.80 is: 448,109.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,396.30 : 809,187.26 = 324,732.80 : x
  2. Step 2: Convert to fraction form
    586,396.30/809,187.26 = 324,732.80/x
  3. Step 3: Cross multiply
    586,396.30x = 809,187.26 × 324,732.80
  4. Step 4: Simplify right side
    586,396.30x = 262,769,644,664.13
  5. Step 5: Solve for x
    x = 262,769,644,664.13/586,396.30
  6. Step 6: Final answer
    x = 448,109.32

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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.