Home / 866,954.10-1,300,431.15-306,045.30

Finding the Fourth Proportional to 866,954.10, 1,300,431.15 and 306,045.30

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Solution

The fourth proportional to 866,954.10, 1,300,431.15 and 306,045.30 is: 459,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,954.10 : 1,300,431.15 = 306,045.30 : x
  2. Step 2: Convert to fraction form
    866,954.10/1,300,431.15 = 306,045.30/x
  3. Step 3: Cross multiply
    866,954.10x = 1,300,431.15 × 306,045.30
  4. Step 4: Simplify right side
    866,954.10x = 397,990,841,431.10
  5. Step 5: Solve for x
    x = 397,990,841,431.10/866,954.10
  6. Step 6: Final answer
    x = 459,067.95

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Double scale
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Similar ratio
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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.