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Finding the Fourth Proportional to 316,247.61, 436,425.17 and 173,004.58

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Solution

The fourth proportional to 316,247.61, 436,425.17 and 173,004.58 is: 238,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,247.61 : 436,425.17 = 173,004.58 : x
  2. Step 2: Convert to fraction form
    316,247.61/436,425.17 = 173,004.58/x
  3. Step 3: Cross multiply
    316,247.61x = 436,425.17 × 173,004.58
  4. Step 4: Simplify right side
    316,247.61x = 75,503,553,237.28
  5. Step 5: Solve for x
    x = 75,503,553,237.28/316,247.61
  6. Step 6: Final answer
    x = 238,748.22

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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.