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Finding the Fourth Proportional to 876,281.60, 1,312,996.80 and 792,300.80

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Solution

The fourth proportional to 876,281.60, 1,312,996.80 and 792,300.80 is: 1,187,162.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,281.60 : 1,312,996.80 = 792,300.80 : x
  2. Step 2: Convert to fraction form
    876,281.60/1,312,996.80 = 792,300.80/x
  3. Step 3: Cross multiply
    876,281.60x = 1,312,996.80 × 792,300.80
  4. Step 4: Simplify right side
    876,281.60x = 1,040,288,415,037.44
  5. Step 5: Solve for x
    x = 1,040,288,415,037.44/876,281.60
  6. Step 6: Final answer
    x = 1,187,162.23

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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.