Home / 878,329.22-1,211,626.31-534,270.38

Finding the Fourth Proportional to 878,329.22, 1,211,626.31 and 534,270.38

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Solution

The fourth proportional to 878,329.22, 1,211,626.31 and 534,270.38 is: 737,008.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,329.22 : 1,211,626.31 = 534,270.38 : x
  2. Step 2: Convert to fraction form
    878,329.22/1,211,626.31 = 534,270.38/x
  3. Step 3: Cross multiply
    878,329.22x = 1,211,626.31 × 534,270.38
  4. Step 4: Simplify right side
    878,329.22x = 647,336,040,332.21
  5. Step 5: Solve for x
    x = 647,336,040,332.21/878,329.22
  6. Step 6: Final answer
    x = 737,008.44

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Double scale
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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.