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Finding the Fourth Proportional to 379,270.96, 522,905.51 and 270,499.32

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Solution

The fourth proportional to 379,270.96, 522,905.51 and 270,499.32 is: 372,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,270.96 : 522,905.51 = 270,499.32 : x
  2. Step 2: Convert to fraction form
    379,270.96/522,905.51 = 270,499.32/x
  3. Step 3: Cross multiply
    379,270.96x = 522,905.51 × 270,499.32
  4. Step 4: Simplify right side
    379,270.96x = 141,445,585,555.50
  5. Step 5: Solve for x
    x = 141,445,585,555.50/379,270.96
  6. Step 6: Final answer
    x = 372,940.72

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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.