Home / 819,618.80-1,229,430.50-287,015.27

Finding the Fourth Proportional to 819,618.80, 1,229,430.50 and 287,015.27

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Solution

The fourth proportional to 819,618.80, 1,229,430.50 and 287,015.27 is: 430,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,618.80 : 1,229,430.50 = 287,015.27 : x
  2. Step 2: Convert to fraction form
    819,618.80/1,229,430.50 = 287,015.27/x
  3. Step 3: Cross multiply
    819,618.80x = 1,229,430.50 × 287,015.27
  4. Step 4: Simplify right side
    819,618.80x = 352,865,322,012.27
  5. Step 5: Solve for x
    x = 352,865,322,012.27/819,618.80
  6. Step 6: Final answer
    x = 430,523.70

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1.5x scale

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.