Home / 763,760.07-1,053,989.30-419,618.18

Finding the Fourth Proportional to 763,760.07, 1,053,989.30 and 419,618.18

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Solution

The fourth proportional to 763,760.07, 1,053,989.30 and 419,618.18 is: 579,073.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,760.07 : 1,053,989.30 = 419,618.18 : x
  2. Step 2: Convert to fraction form
    763,760.07/1,053,989.30 = 419,618.18/x
  3. Step 3: Cross multiply
    763,760.07x = 1,053,989.30 × 419,618.18
  4. Step 4: Simplify right side
    763,760.07x = 442,273,075,489.49
  5. Step 5: Solve for x
    x = 442,273,075,489.49/763,760.07
  6. Step 6: Final answer
    x = 579,073.31

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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.