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Finding the Fourth Proportional to 316,553.76, 436,827.60 and 173,286.36

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Solution

The fourth proportional to 316,553.76, 436,827.60 and 173,286.36 is: 239,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,553.76 : 436,827.60 = 173,286.36 : x
  2. Step 2: Convert to fraction form
    316,553.76/436,827.60 = 173,286.36/x
  3. Step 3: Cross multiply
    316,553.76x = 436,827.60 × 173,286.36
  4. Step 4: Simplify right side
    316,553.76x = 75,696,264,751.54
  5. Step 5: Solve for x
    x = 75,696,264,751.54/316,553.76
  6. Step 6: Final answer
    x = 239,126.10

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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.