Home / 929,186.28-1,393,817.21-442,618.29

Finding the Fourth Proportional to 929,186.28, 1,393,817.21 and 442,618.29

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Solution

The fourth proportional to 929,186.28, 1,393,817.21 and 442,618.29 is: 663,945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,186.28 : 1,393,817.21 = 442,618.29 : x
  2. Step 2: Convert to fraction form
    929,186.28/1,393,817.21 = 442,618.29/x
  3. Step 3: Cross multiply
    929,186.28x = 1,393,817.21 × 442,618.29
  4. Step 4: Simplify right side
    929,186.28x = 616,928,990,754.36
  5. Step 5: Solve for x
    x = 616,928,990,754.36/929,186.28
  6. Step 6: Final answer
    x = 663,945.44

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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.