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Finding the Fourth Proportional to 892,366.62, 1,231,480.79 and 484,468.57

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Solution

The fourth proportional to 892,366.62, 1,231,480.79 and 484,468.57 is: 668,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,366.62 : 1,231,480.79 = 484,468.57 : x
  2. Step 2: Convert to fraction form
    892,366.62/1,231,480.79 = 484,468.57/x
  3. Step 3: Cross multiply
    892,366.62x = 1,231,480.79 × 484,468.57
  4. Step 4: Simplify right side
    892,366.62x = 596,613,737,313.77
  5. Step 5: Solve for x
    x = 596,613,737,313.77/892,366.62
  6. Step 6: Final answer
    x = 668,574.69

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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.