Home / 863,456.28-1,191,577.44-476,286.60

Finding the Fourth Proportional to 863,456.28, 1,191,577.44 and 476,286.60

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Solution

The fourth proportional to 863,456.28, 1,191,577.44 and 476,286.60 is: 657,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,456.28 : 1,191,577.44 = 476,286.60 : x
  2. Step 2: Convert to fraction form
    863,456.28/1,191,577.44 = 476,286.60/x
  3. Step 3: Cross multiply
    863,456.28x = 1,191,577.44 × 476,286.60
  4. Step 4: Simplify right side
    863,456.28x = 567,532,367,534.30
  5. Step 5: Solve for x
    x = 567,532,367,534.30/863,456.28
  6. Step 6: Final answer
    x = 657,279.80

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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.