Home / 856,696.28-1,285,047.27-216,999.81

Finding the Fourth Proportional to 856,696.28, 1,285,047.27 and 216,999.81

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Solution

The fourth proportional to 856,696.28, 1,285,047.27 and 216,999.81 is: 325,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,696.28 : 1,285,047.27 = 216,999.81 : x
  2. Step 2: Convert to fraction form
    856,696.28/1,285,047.27 = 216,999.81/x
  3. Step 3: Cross multiply
    856,696.28x = 1,285,047.27 × 216,999.81
  4. Step 4: Simplify right side
    856,696.28x = 278,855,013,431.02
  5. Step 5: Solve for x
    x = 278,855,013,431.02/856,696.28
  6. Step 6: Final answer
    x = 325,500.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.