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Finding the Fourth Proportional to 1,365.98, 2,046 and 846.12

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Solution

The fourth proportional to 1,365.98, 2,046 and 846.12 is: 1,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.98 : 2,046 = 846.12 : x
  2. Step 2: Convert to fraction form
    1,365.98/2,046 = 846.12/x
  3. Step 3: Cross multiply
    1,365.98x = 2,046 × 846.12
  4. Step 4: Simplify right side
    1,365.98x = 1,731,161.52
  5. Step 5: Solve for x
    x = 1,731,161.52/1,365.98
  6. Step 6: Final answer
    x = 1,267.34

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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.