Home / 1,086,811.40-1,630,217.10-666,324.20

Finding the Fourth Proportional to 1,086,811.40, 1,630,217.10 and 666,324.20

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Solution

The fourth proportional to 1,086,811.40, 1,630,217.10 and 666,324.20 is: 999,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,811.40 : 1,630,217.10 = 666,324.20 : x
  2. Step 2: Convert to fraction form
    1,086,811.40/1,630,217.10 = 666,324.20/x
  3. Step 3: Cross multiply
    1,086,811.40x = 1,630,217.10 × 666,324.20
  4. Step 4: Simplify right side
    1,086,811.40x = 1,086,253,104,983.82
  5. Step 5: Solve for x
    x = 1,086,253,104,983.82/1,086,811.40
  6. Step 6: Final answer
    x = 999,486.30

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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.