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Finding the Fourth Proportional to 615,673.05, 923,601.92 and 216,243.42

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Solution

The fourth proportional to 615,673.05, 923,601.92 and 216,243.42 is: 324,397.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,673.05 : 923,601.92 = 216,243.42 : x
  2. Step 2: Convert to fraction form
    615,673.05/923,601.92 = 216,243.42/x
  3. Step 3: Cross multiply
    615,673.05x = 923,601.92 × 216,243.42
  4. Step 4: Simplify right side
    615,673.05x = 199,722,836,818.15
  5. Step 5: Solve for x
    x = 199,722,836,818.15/615,673.05
  6. Step 6: Final answer
    x = 324,397.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.