Home / 866,100.29-1,299,066.80-266,900.56

Finding the Fourth Proportional to 866,100.29, 1,299,066.80 and 266,900.56

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Solution

The fourth proportional to 866,100.29, 1,299,066.80 and 266,900.56 is: 400,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,100.29 : 1,299,066.80 = 266,900.56 : x
  2. Step 2: Convert to fraction form
    866,100.29/1,299,066.80 = 266,900.56/x
  3. Step 3: Cross multiply
    866,100.29x = 1,299,066.80 × 266,900.56
  4. Step 4: Simplify right side
    866,100.29x = 346,721,651,815.24
  5. Step 5: Solve for x
    x = 346,721,651,815.24/866,100.29
  6. Step 6: Final answer
    x = 400,325.06

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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.