Home / 685,531.23-946,027.80-379,606.38

Finding the Fourth Proportional to 685,531.23, 946,027.80 and 379,606.38

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Solution

The fourth proportional to 685,531.23, 946,027.80 and 379,606.38 is: 523,853.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,531.23 : 946,027.80 = 379,606.38 : x
  2. Step 2: Convert to fraction form
    685,531.23/946,027.80 = 379,606.38/x
  3. Step 3: Cross multiply
    685,531.23x = 946,027.80 × 379,606.38
  4. Step 4: Simplify right side
    685,531.23x = 359,118,188,537.36
  5. Step 5: Solve for x
    x = 359,118,188,537.36/685,531.23
  6. Step 6: Final answer
    x = 523,853.87

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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.