Home / 866,166.09-1,299,234.80-258,955.80

Finding the Fourth Proportional to 866,166.09, 1,299,234.80 and 258,955.80

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Solution

The fourth proportional to 866,166.09, 1,299,234.80 and 258,955.80 is: 388,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,166.09 : 1,299,234.80 = 258,955.80 : x
  2. Step 2: Convert to fraction form
    866,166.09/1,299,234.80 = 258,955.80/x
  3. Step 3: Cross multiply
    866,166.09x = 1,299,234.80 × 258,955.80
  4. Step 4: Simplify right side
    866,166.09x = 336,444,385,727.06
  5. Step 5: Solve for x
    x = 336,444,385,727.06/866,166.09
  6. Step 6: Final answer
    x = 388,429.41

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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.