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Finding the Fourth Proportional to 316,768.50, 437,151.44 and 173,528.55

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Solution

The fourth proportional to 316,768.50, 437,151.44 and 173,528.55 is: 239,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,768.50 : 437,151.44 = 173,528.55 : x
  2. Step 2: Convert to fraction form
    316,768.50/437,151.44 = 173,528.55/x
  3. Step 3: Cross multiply
    316,768.50x = 437,151.44 × 173,528.55
  4. Step 4: Simplify right side
    316,768.50x = 75,858,255,947.43
  5. Step 5: Solve for x
    x = 75,858,255,947.43/316,768.50
  6. Step 6: Final answer
    x = 239,475.38

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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.