Home / 866,165.76-1,299,234.42-258,955.56

Finding the Fourth Proportional to 866,165.76, 1,299,234.42 and 258,955.56

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Solution

The fourth proportional to 866,165.76, 1,299,234.42 and 258,955.56 is: 388,429.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,165.76 : 1,299,234.42 = 258,955.56 : x
  2. Step 2: Convert to fraction form
    866,165.76/1,299,234.42 = 258,955.56/x
  3. Step 3: Cross multiply
    866,165.76x = 1,299,234.42 × 258,955.56
  4. Step 4: Simplify right side
    866,165.76x = 336,443,976,802.38
  5. Step 5: Solve for x
    x = 336,443,976,802.38/866,165.76
  6. Step 6: Final answer
    x = 388,429.09

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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.