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Finding the Fourth Proportional to 999,571.32, 1,379,586 and 591,899.46

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Solution

The fourth proportional to 999,571.32, 1,379,586 and 591,899.46 is: 816,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,571.32 : 1,379,586 = 591,899.46 : x
  2. Step 2: Convert to fraction form
    999,571.32/1,379,586 = 591,899.46/x
  3. Step 3: Cross multiply
    999,571.32x = 1,379,586 × 591,899.46
  4. Step 4: Simplify right side
    999,571.32x = 816,576,208,423.56
  5. Step 5: Solve for x
    x = 816,576,208,423.56/999,571.32
  6. Step 6: Final answer
    x = 816,926.41

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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.