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Finding the Fourth Proportional to 316,597.74, 436,917.88 and 173,370.30

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Solution

The fourth proportional to 316,597.74, 436,917.88 and 173,370.30 is: 239,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,597.74 : 436,917.88 = 173,370.30 : x
  2. Step 2: Convert to fraction form
    316,597.74/436,917.88 = 173,370.30/x
  3. Step 3: Cross multiply
    316,597.74x = 436,917.88 × 173,370.30
  4. Step 4: Simplify right side
    316,597.74x = 75,748,583,930.96
  5. Step 5: Solve for x
    x = 75,748,583,930.96/316,597.74
  6. Step 6: Final answer
    x = 239,258.13

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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.