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Finding the Fourth Proportional to 472,628.79, 709,258.41 and 245,134.10

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Solution

The fourth proportional to 472,628.79, 709,258.41 and 245,134.10 is: 367,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,628.79 : 709,258.41 = 245,134.10 : x
  2. Step 2: Convert to fraction form
    472,628.79/709,258.41 = 245,134.10/x
  3. Step 3: Cross multiply
    472,628.79x = 709,258.41 × 245,134.10
  4. Step 4: Simplify right side
    472,628.79x = 173,863,419,786.35
  5. Step 5: Solve for x
    x = 173,863,419,786.35/472,628.79
  6. Step 6: Final answer
    x = 367,864.64

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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.