Home / 866,808.40-1,196,198.67-484,810.78

Finding the Fourth Proportional to 866,808.40, 1,196,198.67 and 484,810.78

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Solution

The fourth proportional to 866,808.40, 1,196,198.67 and 484,810.78 is: 669,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,808.40 : 1,196,198.67 = 484,810.78 : x
  2. Step 2: Convert to fraction form
    866,808.40/1,196,198.67 = 484,810.78/x
  3. Step 3: Cross multiply
    866,808.40x = 1,196,198.67 × 484,810.78
  4. Step 4: Simplify right side
    866,808.40x = 579,930,010,237.66
  5. Step 5: Solve for x
    x = 579,930,010,237.66/866,808.40
  6. Step 6: Final answer
    x = 669,040.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.