Home / 685,531.32-945,523.50-443,627.28

Finding the Fourth Proportional to 685,531.32, 945,523.50 and 443,627.28

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Solution

The fourth proportional to 685,531.32, 945,523.50 and 443,627.28 is: 611,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,531.32 : 945,523.50 = 443,627.28 : x
  2. Step 2: Convert to fraction form
    685,531.32/945,523.50 = 443,627.28/x
  3. Step 3: Cross multiply
    685,531.32x = 945,523.50 × 443,627.28
  4. Step 4: Simplify right side
    685,531.32x = 419,460,018,481.08
  5. Step 5: Solve for x
    x = 419,460,018,481.08/685,531.32
  6. Step 6: Final answer
    x = 611,875.79

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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.