Home / 445,120.96-614,246.88-243,912.64

Finding the Fourth Proportional to 445,120.96, 614,246.88 and 243,912.64

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Solution

The fourth proportional to 445,120.96, 614,246.88 and 243,912.64 is: 336,588.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,120.96 : 614,246.88 = 243,912.64 : x
  2. Step 2: Convert to fraction form
    445,120.96/614,246.88 = 243,912.64/x
  3. Step 3: Cross multiply
    445,120.96x = 614,246.88 × 243,912.64
  4. Step 4: Simplify right side
    445,120.96x = 149,822,578,112.56
  5. Step 5: Solve for x
    x = 149,822,578,112.56/445,120.96
  6. Step 6: Final answer
    x = 336,588.46

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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.