Home / 805,615.92-1,111,724.51-443,038.65

Finding the Fourth Proportional to 805,615.92, 1,111,724.51 and 443,038.65

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Solution

The fourth proportional to 805,615.92, 1,111,724.51 and 443,038.65 is: 611,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,615.92 : 1,111,724.51 = 443,038.65 : x
  2. Step 2: Convert to fraction form
    805,615.92/1,111,724.51 = 443,038.65/x
  3. Step 3: Cross multiply
    805,615.92x = 1,111,724.51 × 443,038.65
  4. Step 4: Simplify right side
    805,615.92x = 492,536,923,867.12
  5. Step 5: Solve for x
    x = 492,536,923,867.12/805,615.92
  6. Step 6: Final answer
    x = 611,379.33

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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.