Home / 1,205,236.27-1,662,814.09-688,619.48

Finding the Fourth Proportional to 1,205,236.27, 1,662,814.09 and 688,619.48

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Solution

The fourth proportional to 1,205,236.27, 1,662,814.09 and 688,619.48 is: 950,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,236.27 : 1,662,814.09 = 688,619.48 : x
  2. Step 2: Convert to fraction form
    1,205,236.27/1,662,814.09 = 688,619.48/x
  3. Step 3: Cross multiply
    1,205,236.27x = 1,662,814.09 × 688,619.48
  4. Step 4: Simplify right side
    1,205,236.27x = 1,145,046,176,427.96
  5. Step 5: Solve for x
    x = 1,145,046,176,427.96/1,205,236.27
  6. Step 6: Final answer
    x = 950,059.51

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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.