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Finding the Fourth Proportional to 805,601.81, 1,111,759.03 and 443,053.70

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Solution

The fourth proportional to 805,601.81, 1,111,759.03 and 443,053.70 is: 611,429.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,601.81 : 1,111,759.03 = 443,053.70 : x
  2. Step 2: Convert to fraction form
    805,601.81/1,111,759.03 = 443,053.70/x
  3. Step 3: Cross multiply
    805,601.81x = 1,111,759.03 × 443,053.70
  4. Step 4: Simplify right side
    805,601.81x = 492,568,955,083.13
  5. Step 5: Solve for x
    x = 492,568,955,083.13/805,601.81
  6. Step 6: Final answer
    x = 611,429.81

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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.