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Finding the Fourth Proportional to 316,783.66, 437,161.44 and 189,459.25

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Solution

The fourth proportional to 316,783.66, 437,161.44 and 189,459.25 is: 261,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,783.66 : 437,161.44 = 189,459.25 : x
  2. Step 2: Convert to fraction form
    316,783.66/437,161.44 = 189,459.25/x
  3. Step 3: Cross multiply
    316,783.66x = 437,161.44 × 189,459.25
  4. Step 4: Simplify right side
    316,783.66x = 82,824,278,551.32
  5. Step 5: Solve for x
    x = 82,824,278,551.32/316,783.66
  6. Step 6: Final answer
    x = 261,453.76

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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.