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Finding the Fourth Proportional to 1,439,223, 1,986,302.70 and 835,611

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Solution

The fourth proportional to 1,439,223, 1,986,302.70 and 835,611 is: 1,153,244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,223 : 1,986,302.70 = 835,611 : x
  2. Step 2: Convert to fraction form
    1,439,223/1,986,302.70 = 835,611/x
  3. Step 3: Cross multiply
    1,439,223x = 1,986,302.70 × 835,611
  4. Step 4: Simplify right side
    1,439,223x = 1,659,776,385,449.70
  5. Step 5: Solve for x
    x = 1,659,776,385,449.70/1,439,223
  6. Step 6: Final answer
    x = 1,153,244.76

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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.