Home / 821,586.25-1,133,781.28-459,072.55

Finding the Fourth Proportional to 821,586.25, 1,133,781.28 and 459,072.55

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Solution

The fourth proportional to 821,586.25, 1,133,781.28 and 459,072.55 is: 633,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,586.25 : 1,133,781.28 = 459,072.55 : x
  2. Step 2: Convert to fraction form
    821,586.25/1,133,781.28 = 459,072.55/x
  3. Step 3: Cross multiply
    821,586.25x = 1,133,781.28 × 459,072.55
  4. Step 4: Simplify right side
    821,586.25x = 520,487,863,351.86
  5. Step 5: Solve for x
    x = 520,487,863,351.86/821,586.25
  6. Step 6: Final answer
    x = 633,515.79

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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.