Home / 839,652.88-1,259,474.64-208,566.40

Finding the Fourth Proportional to 839,652.88, 1,259,474.64 and 208,566.40

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Solution

The fourth proportional to 839,652.88, 1,259,474.64 and 208,566.40 is: 312,848.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,652.88 : 1,259,474.64 = 208,566.40 : x
  2. Step 2: Convert to fraction form
    839,652.88/1,259,474.64 = 208,566.40/x
  3. Step 3: Cross multiply
    839,652.88x = 1,259,474.64 × 208,566.40
  4. Step 4: Simplify right side
    839,652.88x = 262,684,091,556.10
  5. Step 5: Solve for x
    x = 262,684,091,556.10/839,652.88
  6. Step 6: Final answer
    x = 312,848.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.