Home / 805,686.70-1,111,856.92-443,116.61

Finding the Fourth Proportional to 805,686.70, 1,111,856.92 and 443,116.61

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Solution

The fourth proportional to 805,686.70, 1,111,856.92 and 443,116.61 is: 611,506.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,686.70 : 1,111,856.92 = 443,116.61 : x
  2. Step 2: Convert to fraction form
    805,686.70/1,111,856.92 = 443,116.61/x
  3. Step 3: Cross multiply
    805,686.70x = 1,111,856.92 × 443,116.61
  4. Step 4: Simplify right side
    805,686.70x = 492,682,271,466.38
  5. Step 5: Solve for x
    x = 492,682,271,466.38/805,686.70
  6. Step 6: Final answer
    x = 611,506.03

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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.