Home / 1,431,403.69-1,975,341.19-819,565.83

Finding the Fourth Proportional to 1,431,403.69, 1,975,341.19 and 819,565.83

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Solution

The fourth proportional to 1,431,403.69, 1,975,341.19 and 819,565.83 is: 1,131,003.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,403.69 : 1,975,341.19 = 819,565.83 : x
  2. Step 2: Convert to fraction form
    1,431,403.69/1,975,341.19 = 819,565.83/x
  3. Step 3: Cross multiply
    1,431,403.69x = 1,975,341.19 × 819,565.83
  4. Step 4: Simplify right side
    1,431,403.69x = 1,618,922,150,347.52
  5. Step 5: Solve for x
    x = 1,618,922,150,347.52/1,431,403.69
  6. Step 6: Final answer
    x = 1,131,003.20

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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.