Home / 921,745.44-1,271,657.48-680,606.82

Finding the Fourth Proportional to 921,745.44, 1,271,657.48 and 680,606.82

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Solution

The fourth proportional to 921,745.44, 1,271,657.48 and 680,606.82 is: 938,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,745.44 : 1,271,657.48 = 680,606.82 : x
  2. Step 2: Convert to fraction form
    921,745.44/1,271,657.48 = 680,606.82/x
  3. Step 3: Cross multiply
    921,745.44x = 1,271,657.48 × 680,606.82
  4. Step 4: Simplify right side
    921,745.44x = 865,498,750,188.98
  5. Step 5: Solve for x
    x = 865,498,750,188.98/921,745.44
  6. Step 6: Final answer
    x = 938,978.07

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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.