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Finding the Fourth Proportional to 316,493.33, 436,811.67 and 180,571.64

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Solution

The fourth proportional to 316,493.33, 436,811.67 and 180,571.64 is: 249,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,493.33 : 436,811.67 = 180,571.64 : x
  2. Step 2: Convert to fraction form
    316,493.33/436,811.67 = 180,571.64/x
  3. Step 3: Cross multiply
    316,493.33x = 436,811.67 × 180,571.64
  4. Step 4: Simplify right side
    316,493.33x = 78,875,797,438.98
  5. Step 5: Solve for x
    x = 78,875,797,438.98/316,493.33
  6. Step 6: Final answer
    x = 249,217.89

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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.