Home / 1,431,403.19-1,975,340.50-819,565.34

Finding the Fourth Proportional to 1,431,403.19, 1,975,340.50 and 819,565.34

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Solution

The fourth proportional to 1,431,403.19, 1,975,340.50 and 819,565.34 is: 1,131,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,403.19 : 1,975,340.50 = 819,565.34 : x
  2. Step 2: Convert to fraction form
    1,431,403.19/1,975,340.50 = 819,565.34/x
  3. Step 3: Cross multiply
    1,431,403.19x = 1,975,340.50 × 819,565.34
  4. Step 4: Simplify right side
    1,431,403.19x = 1,618,920,600,670.48
  5. Step 5: Solve for x
    x = 1,618,920,600,670.48/1,431,403.19
  6. Step 6: Final answer
    x = 1,131,002.51

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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.