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Finding the Fourth Proportional to 472,785.32, 652,443.72 and 303,019.44

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Solution

The fourth proportional to 472,785.32, 652,443.72 and 303,019.44 is: 418,166.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,785.32 : 652,443.72 = 303,019.44 : x
  2. Step 2: Convert to fraction form
    472,785.32/652,443.72 = 303,019.44/x
  3. Step 3: Cross multiply
    472,785.32x = 652,443.72 × 303,019.44
  4. Step 4: Simplify right side
    472,785.32x = 197,703,130,665.92
  5. Step 5: Solve for x
    x = 197,703,130,665.92/472,785.32
  6. Step 6: Final answer
    x = 418,166.81

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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.