Home / 819,931.56-1,131,556.26-452,406.90

Finding the Fourth Proportional to 819,931.56, 1,131,556.26 and 452,406.90

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Solution

The fourth proportional to 819,931.56, 1,131,556.26 and 452,406.90 is: 624,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,931.56 : 1,131,556.26 = 452,406.90 : x
  2. Step 2: Convert to fraction form
    819,931.56/1,131,556.26 = 452,406.90/x
  3. Step 3: Cross multiply
    819,931.56x = 1,131,556.26 × 452,406.90
  4. Step 4: Simplify right side
    819,931.56x = 511,923,859,762.19
  5. Step 5: Solve for x
    x = 511,923,859,762.19/819,931.56
  6. Step 6: Final answer
    x = 624,349.50

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1.5x scale

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.