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Finding the Fourth Proportional to 463,993.77, 640,356.35 and 260,079.33

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Solution

The fourth proportional to 463,993.77, 640,356.35 and 260,079.33 is: 358,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,993.77 : 640,356.35 = 260,079.33 : x
  2. Step 2: Convert to fraction form
    463,993.77/640,356.35 = 260,079.33/x
  3. Step 3: Cross multiply
    463,993.77x = 640,356.35 × 260,079.33
  4. Step 4: Simplify right side
    463,993.77x = 166,543,449,168.85
  5. Step 5: Solve for x
    x = 166,543,449,168.85/463,993.77
  6. Step 6: Final answer
    x = 358,934.67

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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.