Home / 635,947.20-877,415.76-381,205.44

Finding the Fourth Proportional to 635,947.20, 877,415.76 and 381,205.44

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Solution

The fourth proportional to 635,947.20, 877,415.76 and 381,205.44 is: 525,948.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,947.20 : 877,415.76 = 381,205.44 : x
  2. Step 2: Convert to fraction form
    635,947.20/877,415.76 = 381,205.44/x
  3. Step 3: Cross multiply
    635,947.20x = 877,415.76 × 381,205.44
  4. Step 4: Simplify right side
    635,947.20x = 334,475,660,853.73
  5. Step 5: Solve for x
    x = 334,475,660,853.73/635,947.20
  6. Step 6: Final answer
    x = 525,948.79

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1.5x scale

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.