Home / 859,087.20-1,185,634.34-491,598.30

Finding the Fourth Proportional to 859,087.20, 1,185,634.34 and 491,598.30

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Solution

The fourth proportional to 859,087.20, 1,185,634.34 and 491,598.30 is: 678,459.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,087.20 : 1,185,634.34 = 491,598.30 : x
  2. Step 2: Convert to fraction form
    859,087.20/1,185,634.34 = 491,598.30/x
  3. Step 3: Cross multiply
    859,087.20x = 1,185,634.34 × 491,598.30
  4. Step 4: Simplify right side
    859,087.20x = 582,855,823,507.63
  5. Step 5: Solve for x
    x = 582,855,823,507.63/859,087.20
  6. Step 6: Final answer
    x = 678,459.44

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.