Home / 862,728.28-1,294,045.34-263,689.23

Finding the Fourth Proportional to 862,728.28, 1,294,045.34 and 263,689.23

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Solution

The fourth proportional to 862,728.28, 1,294,045.34 and 263,689.23 is: 395,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,728.28 : 1,294,045.34 = 263,689.23 : x
  2. Step 2: Convert to fraction form
    862,728.28/1,294,045.34 = 263,689.23/x
  3. Step 3: Cross multiply
    862,728.28x = 1,294,045.34 × 263,689.23
  4. Step 4: Simplify right side
    862,728.28x = 341,225,822,823.91
  5. Step 5: Solve for x
    x = 341,225,822,823.91/862,728.28
  6. Step 6: Final answer
    x = 395,519.46

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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.