Home / 805,206.20-1,111,188.15-442,653.41

Finding the Fourth Proportional to 805,206.20, 1,111,188.15 and 442,653.41

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Solution

The fourth proportional to 805,206.20, 1,111,188.15 and 442,653.41 is: 610,863.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,206.20 : 1,111,188.15 = 442,653.41 : x
  2. Step 2: Convert to fraction form
    805,206.20/1,111,188.15 = 442,653.41/x
  3. Step 3: Cross multiply
    805,206.20x = 1,111,188.15 × 442,653.41
  4. Step 4: Simplify right side
    805,206.20x = 491,871,226,527.06
  5. Step 5: Solve for x
    x = 491,871,226,527.06/805,206.20
  6. Step 6: Final answer
    x = 610,863.69

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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.