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Finding the Fourth Proportional to 300,274.48, 414,528.80 and 172,925.47

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Solution

The fourth proportional to 300,274.48, 414,528.80 and 172,925.47 is: 238,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,274.48 : 414,528.80 = 172,925.47 : x
  2. Step 2: Convert to fraction form
    300,274.48/414,528.80 = 172,925.47/x
  3. Step 3: Cross multiply
    300,274.48x = 414,528.80 × 172,925.47
  4. Step 4: Simplify right side
    300,274.48x = 71,682,587,568.54
  5. Step 5: Solve for x
    x = 71,682,587,568.54/300,274.48
  6. Step 6: Final answer
    x = 238,723.54

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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.