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Finding the Fourth Proportional to 866,857, 1,196,315.70 and 484,909.48

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Solution

The fourth proportional to 866,857, 1,196,315.70 and 484,909.48 is: 669,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,857 : 1,196,315.70 = 484,909.48 : x
  2. Step 2: Convert to fraction form
    866,857/1,196,315.70 = 484,909.48/x
  3. Step 3: Cross multiply
    866,857x = 1,196,315.70 × 484,909.48
  4. Step 4: Simplify right side
    866,857x = 580,104,824,002.84
  5. Step 5: Solve for x
    x = 580,104,824,002.84/866,857
  6. Step 6: Final answer
    x = 669,204.75

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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.