Home / 1,431,400.33-1,975,336.55-819,562.47

Finding the Fourth Proportional to 1,431,400.33, 1,975,336.55 and 819,562.47

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Solution

The fourth proportional to 1,431,400.33, 1,975,336.55 and 819,562.47 is: 1,130,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,400.33 : 1,975,336.55 = 819,562.47 : x
  2. Step 2: Convert to fraction form
    1,431,400.33/1,975,336.55 = 819,562.47/x
  3. Step 3: Cross multiply
    1,431,400.33x = 1,975,336.55 × 819,562.47
  4. Step 4: Simplify right side
    1,431,400.33x = 1,618,911,701,999.28
  5. Step 5: Solve for x
    x = 1,618,911,701,999.28/1,431,400.33
  6. Step 6: Final answer
    x = 1,130,998.55

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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.