Home / 685,532.23-946,019.46-399,046.17

Finding the Fourth Proportional to 685,532.23, 946,019.46 and 399,046.17

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Solution

The fourth proportional to 685,532.23, 946,019.46 and 399,046.17 is: 550,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,532.23 : 946,019.46 = 399,046.17 : x
  2. Step 2: Convert to fraction form
    685,532.23/946,019.46 = 399,046.17/x
  3. Step 3: Cross multiply
    685,532.23x = 946,019.46 × 399,046.17
  4. Step 4: Simplify right side
    685,532.23x = 377,505,442,258.47
  5. Step 5: Solve for x
    x = 377,505,442,258.47/685,532.23
  6. Step 6: Final answer
    x = 550,674.97

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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.