Home / 693,310.33-1,039,965.02-261,109.32

Finding the Fourth Proportional to 693,310.33, 1,039,965.02 and 261,109.32

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Solution

The fourth proportional to 693,310.33, 1,039,965.02 and 261,109.32 is: 391,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,310.33 : 1,039,965.02 = 261,109.32 : x
  2. Step 2: Convert to fraction form
    693,310.33/1,039,965.02 = 261,109.32/x
  3. Step 3: Cross multiply
    693,310.33x = 1,039,965.02 × 261,109.32
  4. Step 4: Simplify right side
    693,310.33x = 271,544,559,195.99
  5. Step 5: Solve for x
    x = 271,544,559,195.99/693,310.33
  6. Step 6: Final answer
    x = 391,663.80

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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.