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Finding the Fourth Proportional to 866,860, 1,196,319.84 and 484,912.48

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Solution

The fourth proportional to 866,860, 1,196,319.84 and 484,912.48 is: 669,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,860 : 1,196,319.84 = 484,912.48 : x
  2. Step 2: Convert to fraction form
    866,860/1,196,319.84 = 484,912.48/x
  3. Step 3: Cross multiply
    866,860x = 1,196,319.84 × 484,912.48
  4. Step 4: Simplify right side
    866,860x = 580,110,420,487.60
  5. Step 5: Solve for x
    x = 580,110,420,487.60/866,860
  6. Step 6: Final answer
    x = 669,208.89

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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.