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Finding the Fourth Proportional to 306,556.96, 423,040.76 and 177,477.52

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Solution

The fourth proportional to 306,556.96, 423,040.76 and 177,477.52 is: 244,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,556.96 : 423,040.76 = 177,477.52 : x
  2. Step 2: Convert to fraction form
    306,556.96/423,040.76 = 177,477.52/x
  3. Step 3: Cross multiply
    306,556.96x = 423,040.76 × 177,477.52
  4. Step 4: Simplify right side
    306,556.96x = 75,080,224,943.72
  5. Step 5: Solve for x
    x = 75,080,224,943.72/306,556.96
  6. Step 6: Final answer
    x = 244,914.44

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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.