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Finding the Fourth Proportional to 1,265,728.83, 1,746,699.44 and 684,951.54

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Solution

The fourth proportional to 1,265,728.83, 1,746,699.44 and 684,951.54 is: 945,229.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,728.83 : 1,746,699.44 = 684,951.54 : x
  2. Step 2: Convert to fraction form
    1,265,728.83/1,746,699.44 = 684,951.54/x
  3. Step 3: Cross multiply
    1,265,728.83x = 1,746,699.44 × 684,951.54
  4. Step 4: Simplify right side
    1,265,728.83x = 1,196,404,467,920.38
  5. Step 5: Solve for x
    x = 1,196,404,467,920.38/1,265,728.83
  6. Step 6: Final answer
    x = 945,229.69

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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.