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Finding the Fourth Proportional to 316,452.41, 436,617.97 and 180,436.76

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Solution

The fourth proportional to 316,452.41, 436,617.97 and 180,436.76 is: 248,953.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,452.41 : 436,617.97 = 180,436.76 : x
  2. Step 2: Convert to fraction form
    316,452.41/436,617.97 = 180,436.76/x
  3. Step 3: Cross multiply
    316,452.41x = 436,617.97 × 180,436.76
  4. Step 4: Simplify right side
    316,452.41x = 78,781,929,230.40
  5. Step 5: Solve for x
    x = 78,781,929,230.40/316,452.41
  6. Step 6: Final answer
    x = 248,953.48

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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.