Home / 1,328,658.81-1,989,991.82-617,189.64

Finding the Fourth Proportional to 1,328,658.81, 1,989,991.82 and 617,189.64

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Solution

The fourth proportional to 1,328,658.81, 1,989,991.82 and 617,189.64 is: 924,392.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,658.81 : 1,989,991.82 = 617,189.64 : x
  2. Step 2: Convert to fraction form
    1,328,658.81/1,989,991.82 = 617,189.64/x
  3. Step 3: Cross multiply
    1,328,658.81x = 1,989,991.82 × 617,189.64
  4. Step 4: Simplify right side
    1,328,658.81x = 1,228,202,331,902.80
  5. Step 5: Solve for x
    x = 1,228,202,331,902.80/1,328,658.81
  6. Step 6: Final answer
    x = 924,392.57

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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.