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Finding the Fourth Proportional to 2,168,747.89, 2,992,879.88 and 1,201,894.63

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Solution

The fourth proportional to 2,168,747.89, 2,992,879.88 and 1,201,894.63 is: 1,658,618.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,747.89 : 2,992,879.88 = 1,201,894.63 : x
  2. Step 2: Convert to fraction form
    2,168,747.89/2,992,879.88 = 1,201,894.63/x
  3. Step 3: Cross multiply
    2,168,747.89x = 2,992,879.88 × 1,201,894.63
  4. Step 4: Simplify right side
    2,168,747.89x = 3,597,126,256,007.04
  5. Step 5: Solve for x
    x = 3,597,126,256,007.04/2,168,747.89
  6. Step 6: Final answer
    x = 1,658,618.91

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1.5x scale

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.