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Finding the Fourth Proportional to 1,132,977, 1,560,529.88 and 870,831

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Solution

The fourth proportional to 1,132,977, 1,560,529.88 and 870,831 is: 1,199,457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,977 : 1,560,529.88 = 870,831 : x
  2. Step 2: Convert to fraction form
    1,132,977/1,560,529.88 = 870,831/x
  3. Step 3: Cross multiply
    1,132,977x = 1,560,529.88 × 870,831
  4. Step 4: Simplify right side
    1,132,977x = 1,358,957,795,930.28
  5. Step 5: Solve for x
    x = 1,358,957,795,930.28/1,132,977
  6. Step 6: Final answer
    x = 1,199,457.53

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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.