Home / 685,178.48-945,522.18-379,255.46

Finding the Fourth Proportional to 685,178.48, 945,522.18 and 379,255.46

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Solution

The fourth proportional to 685,178.48, 945,522.18 and 379,255.46 is: 523,359.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,178.48 : 945,522.18 = 379,255.46 : x
  2. Step 2: Convert to fraction form
    685,178.48/945,522.18 = 379,255.46/x
  3. Step 3: Cross multiply
    685,178.48x = 945,522.18 × 379,255.46
  4. Step 4: Simplify right side
    685,178.48x = 358,594,449,316.10
  5. Step 5: Solve for x
    x = 358,594,449,316.10/685,178.48
  6. Step 6: Final answer
    x = 523,359.18

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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.