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Finding the Fourth Proportional to 941,709.80, 1,410,491.10 and 836,647.40

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Solution

The fourth proportional to 941,709.80, 1,410,491.10 and 836,647.40 is: 1,253,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,709.80 : 1,410,491.10 = 836,647.40 : x
  2. Step 2: Convert to fraction form
    941,709.80/1,410,491.10 = 836,647.40/x
  3. Step 3: Cross multiply
    941,709.80x = 1,410,491.10 × 836,647.40
  4. Step 4: Simplify right side
    941,709.80x = 1,180,083,711,538.14
  5. Step 5: Solve for x
    x = 1,180,083,711,538.14/941,709.80
  6. Step 6: Final answer
    x = 1,253,128.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.