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Finding the Fourth Proportional to 866,338.79, 1,299,729.85 and 333,716.81

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Solution

The fourth proportional to 866,338.79, 1,299,729.85 and 333,716.81 is: 500,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,338.79 : 1,299,729.85 = 333,716.81 : x
  2. Step 2: Convert to fraction form
    866,338.79/1,299,729.85 = 333,716.81/x
  3. Step 3: Cross multiply
    866,338.79x = 1,299,729.85 × 333,716.81
  4. Step 4: Simplify right side
    866,338.79x = 433,741,692,070.84
  5. Step 5: Solve for x
    x = 433,741,692,070.84/866,338.79
  6. Step 6: Final answer
    x = 500,660.60

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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.