Home / 921,150.23-1,271,714.72-615,743.84

Finding the Fourth Proportional to 921,150.23, 1,271,714.72 and 615,743.84

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Solution

The fourth proportional to 921,150.23, 1,271,714.72 and 615,743.84 is: 850,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,150.23 : 1,271,714.72 = 615,743.84 : x
  2. Step 2: Convert to fraction form
    921,150.23/1,271,714.72 = 615,743.84/x
  3. Step 3: Cross multiply
    921,150.23x = 1,271,714.72 × 615,743.84
  4. Step 4: Simplify right side
    921,150.23x = 783,050,505,177.89
  5. Step 5: Solve for x
    x = 783,050,505,177.89/921,150.23
  6. Step 6: Final answer
    x = 850,079.05

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Double scale
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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.