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Finding the Fourth Proportional to 1,262,082.04, 1,741,743.78 and 689,175.40

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Solution

The fourth proportional to 1,262,082.04, 1,741,743.78 and 689,175.40 is: 951,100.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,082.04 : 1,741,743.78 = 689,175.40 : x
  2. Step 2: Convert to fraction form
    1,262,082.04/1,741,743.78 = 689,175.40/x
  3. Step 3: Cross multiply
    1,262,082.04x = 1,741,743.78 × 689,175.40
  4. Step 4: Simplify right side
    1,262,082.04x = 1,200,366,966,279.01
  5. Step 5: Solve for x
    x = 1,200,366,966,279.01/1,262,082.04
  6. Step 6: Final answer
    x = 951,100.58

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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.