Home / 693,459.40-1,040,189.10-360,992.20

Finding the Fourth Proportional to 693,459.40, 1,040,189.10 and 360,992.20

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Solution

The fourth proportional to 693,459.40, 1,040,189.10 and 360,992.20 is: 541,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,459.40 : 1,040,189.10 = 360,992.20 : x
  2. Step 2: Convert to fraction form
    693,459.40/1,040,189.10 = 360,992.20/x
  3. Step 3: Cross multiply
    693,459.40x = 1,040,189.10 × 360,992.20
  4. Step 4: Simplify right side
    693,459.40x = 375,500,151,625.02
  5. Step 5: Solve for x
    x = 375,500,151,625.02/693,459.40
  6. Step 6: Final answer
    x = 541,488.30

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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.