Home / 1,431,424.13-1,975,369.41-819,586.31

Finding the Fourth Proportional to 1,431,424.13, 1,975,369.41 and 819,586.31

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Solution

The fourth proportional to 1,431,424.13, 1,975,369.41 and 819,586.31 is: 1,131,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,424.13 : 1,975,369.41 = 819,586.31 : x
  2. Step 2: Convert to fraction form
    1,431,424.13/1,975,369.41 = 819,586.31/x
  3. Step 3: Cross multiply
    1,431,424.13x = 1,975,369.41 × 819,586.31
  4. Step 4: Simplify right side
    1,431,424.13x = 1,618,985,715,751.93
  5. Step 5: Solve for x
    x = 1,618,985,715,751.93/1,431,424.13
  6. Step 6: Final answer
    x = 1,131,031.46

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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.