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Finding the Fourth Proportional to 316,350.40, 436,563.53 and 173,110.46

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Solution

The fourth proportional to 316,350.40, 436,563.53 and 173,110.46 is: 238,892.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,350.40 : 436,563.53 = 173,110.46 : x
  2. Step 2: Convert to fraction form
    316,350.40/436,563.53 = 173,110.46/x
  3. Step 3: Cross multiply
    316,350.40x = 436,563.53 × 173,110.46
  4. Step 4: Simplify right side
    316,350.40x = 75,573,713,497.52
  5. Step 5: Solve for x
    x = 75,573,713,497.52/316,350.40
  6. Step 6: Final answer
    x = 238,892.42

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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.