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Finding the Fourth Proportional to 446,858.66, 670,288.13 and 131,315.60

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Solution

The fourth proportional to 446,858.66, 670,288.13 and 131,315.60 is: 196,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,858.66 : 670,288.13 = 131,315.60 : x
  2. Step 2: Convert to fraction form
    446,858.66/670,288.13 = 131,315.60/x
  3. Step 3: Cross multiply
    446,858.66x = 670,288.13 × 131,315.60
  4. Step 4: Simplify right side
    446,858.66x = 88,019,283,955.81
  5. Step 5: Solve for x
    x = 88,019,283,955.81/446,858.66
  6. Step 6: Final answer
    x = 196,973.43

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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.