Home / 866,716.40-1,299,556.20-446,812.40

Finding the Fourth Proportional to 866,716.40, 1,299,556.20 and 446,812.40

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Solution

The fourth proportional to 866,716.40, 1,299,556.20 and 446,812.40 is: 669,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,716.40 : 1,299,556.20 = 446,812.40 : x
  2. Step 2: Convert to fraction form
    866,716.40/1,299,556.20 = 446,812.40/x
  3. Step 3: Cross multiply
    866,716.40x = 1,299,556.20 × 446,812.40
  4. Step 4: Simplify right side
    866,716.40x = 580,657,824,656.88
  5. Step 5: Solve for x
    x = 580,657,824,656.88/866,716.40
  6. Step 6: Final answer
    x = 669,951.35

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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.