Home / 685,919.73-946,542.33-375,816.75

Finding the Fourth Proportional to 685,919.73, 946,542.33 and 375,816.75

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Solution

The fourth proportional to 685,919.73, 946,542.33 and 375,816.75 is: 518,612.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,919.73 : 946,542.33 = 375,816.75 : x
  2. Step 2: Convert to fraction form
    685,919.73/946,542.33 = 375,816.75/x
  3. Step 3: Cross multiply
    685,919.73x = 946,542.33 × 375,816.75
  4. Step 4: Simplify right side
    685,919.73x = 355,726,462,198.03
  5. Step 5: Solve for x
    x = 355,726,462,198.03/685,919.73
  6. Step 6: Final answer
    x = 518,612.38

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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.