Home / 737,599,836.69-1,017,945,799.38-420,073,509.42

Finding the Fourth Proportional to 737,599,836.69, 1,017,945,799.38 and 420,073,509.42

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Solution

The fourth proportional to 737,599,836.69, 1,017,945,799.38 and 420,073,509.42 is: 579,734,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,599,836.69 : 1,017,945,799.38 = 420,073,509.42 : x
  2. Step 2: Convert to fraction form
    737,599,836.69/1,017,945,799.38 = 420,073,509.42/x
  3. Step 3: Cross multiply
    737,599,836.69x = 1,017,945,799.38 × 420,073,509.42
  4. Step 4: Simplify right side
    737,599,836.69x = 427,612,064,344,903,872
  5. Step 5: Solve for x
    x = 427,612,064,344,903,872/737,599,836.69
  6. Step 6: Final answer
    x = 579,734,488.91

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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.