Home / 921,746.44-1,271,658.85-680,607.82

Finding the Fourth Proportional to 921,746.44, 1,271,658.85 and 680,607.82

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Solution

The fourth proportional to 921,746.44, 1,271,658.85 and 680,607.82 is: 938,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,746.44 : 1,271,658.85 = 680,607.82 : x
  2. Step 2: Convert to fraction form
    921,746.44/1,271,658.85 = 680,607.82/x
  3. Step 3: Cross multiply
    921,746.44x = 1,271,658.85 × 680,607.82
  4. Step 4: Simplify right side
    921,746.44x = 865,500,957,682.21
  5. Step 5: Solve for x
    x = 865,500,957,682.21/921,746.44
  6. Step 6: Final answer
    x = 938,979.44

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Double scale
Find fourth proportional to 921,747.44, 1,271,660.23 and 680,608.82
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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.