Home / 685,694.24-946,145.60-430,865.04

Finding the Fourth Proportional to 685,694.24, 946,145.60 and 430,865.04

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Solution

The fourth proportional to 685,694.24, 946,145.60 and 430,865.04 is: 594,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,694.24 : 946,145.60 = 430,865.04 : x
  2. Step 2: Convert to fraction form
    685,694.24/946,145.60 = 430,865.04/x
  3. Step 3: Cross multiply
    685,694.24x = 946,145.60 × 430,865.04
  4. Step 4: Simplify right side
    685,694.24x = 407,661,061,789.82
  5. Step 5: Solve for x
    x = 407,661,061,789.82/685,694.24
  6. Step 6: Final answer
    x = 594,523.10

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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.