Home / 821,693.31-1,133,915.58-459,120.15

Finding the Fourth Proportional to 821,693.31, 1,133,915.58 and 459,120.15

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Solution

The fourth proportional to 821,693.31, 1,133,915.58 and 459,120.15 is: 633,573.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,693.31 : 1,133,915.58 = 459,120.15 : x
  2. Step 2: Convert to fraction form
    821,693.31/1,133,915.58 = 459,120.15/x
  3. Step 3: Cross multiply
    821,693.31x = 1,133,915.58 × 459,120.15
  4. Step 4: Simplify right side
    821,693.31x = 520,603,491,176.94
  5. Step 5: Solve for x
    x = 520,603,491,176.94/821,693.31
  6. Step 6: Final answer
    x = 633,573.97

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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.