Home / 805,808.04-1,111,991.64-443,231.84

Finding the Fourth Proportional to 805,808.04, 1,111,991.64 and 443,231.84

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Solution

The fourth proportional to 805,808.04, 1,111,991.64 and 443,231.84 is: 611,647.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,808.04 : 1,111,991.64 = 443,231.84 : x
  2. Step 2: Convert to fraction form
    805,808.04/1,111,991.64 = 443,231.84/x
  3. Step 3: Cross multiply
    805,808.04x = 1,111,991.64 × 443,231.84
  4. Step 4: Simplify right side
    805,808.04x = 492,870,100,661.82
  5. Step 5: Solve for x
    x = 492,870,100,661.82/805,808.04
  6. Step 6: Final answer
    x = 611,647.04

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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.