Home / 1,279,335.06-1,765,429.02-698,511.60

Finding the Fourth Proportional to 1,279,335.06, 1,765,429.02 and 698,511.60

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Solution

The fourth proportional to 1,279,335.06, 1,765,429.02 and 698,511.60 is: 963,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,335.06 : 1,765,429.02 = 698,511.60 : x
  2. Step 2: Convert to fraction form
    1,279,335.06/1,765,429.02 = 698,511.60/x
  3. Step 3: Cross multiply
    1,279,335.06x = 1,765,429.02 × 698,511.60
  4. Step 4: Simplify right side
    1,279,335.06x = 1,233,172,649,446.63
  5. Step 5: Solve for x
    x = 1,233,172,649,446.63/1,279,335.06
  6. Step 6: Final answer
    x = 963,916.87

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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.