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Finding the Fourth Proportional to 881,716.50, 1,323,164.93 and 320,751

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Solution

The fourth proportional to 881,716.50, 1,323,164.93 and 320,751 is: 481,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,716.50 : 1,323,164.93 = 320,751 : x
  2. Step 2: Convert to fraction form
    881,716.50/1,323,164.93 = 320,751/x
  3. Step 3: Cross multiply
    881,716.50x = 1,323,164.93 × 320,751
  4. Step 4: Simplify right side
    881,716.50x = 424,406,472,858.68
  5. Step 5: Solve for x
    x = 424,406,472,858.68/881,716.50
  6. Step 6: Final answer
    x = 481,341.19

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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.