Home / 939,530.88-1,406,043.36-579,553.92

Finding the Fourth Proportional to 939,530.88, 1,406,043.36 and 579,553.92

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Solution

The fourth proportional to 939,530.88, 1,406,043.36 and 579,553.92 is: 867,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,530.88 : 1,406,043.36 = 579,553.92 : x
  2. Step 2: Convert to fraction form
    939,530.88/1,406,043.36 = 579,553.92/x
  3. Step 3: Cross multiply
    939,530.88x = 1,406,043.36 × 579,553.92
  4. Step 4: Simplify right side
    939,530.88x = 814,877,940,977.97
  5. Step 5: Solve for x
    x = 814,877,940,977.97/939,530.88
  6. Step 6: Final answer
    x = 867,324.28

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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.