Home / 1,008,391-1,512,586.46-691,888.36

Finding the Fourth Proportional to 1,008,391, 1,512,586.46 and 691,888.36

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Solution

The fourth proportional to 1,008,391, 1,512,586.46 and 691,888.36 is: 1,037,832.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,391 : 1,512,586.46 = 691,888.36 : x
  2. Step 2: Convert to fraction form
    1,008,391/1,512,586.46 = 691,888.36/x
  3. Step 3: Cross multiply
    1,008,391x = 1,512,586.46 × 691,888.36
  4. Step 4: Simplify right side
    1,008,391x = 1,046,540,965,167.61
  5. Step 5: Solve for x
    x = 1,046,540,965,167.61/1,008,391
  6. Step 6: Final answer
    x = 1,037,832.51

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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.