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Finding the Fourth Proportional to 310,523.60, 428,474.52 and 174,532.29

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Solution

The fourth proportional to 310,523.60, 428,474.52 and 174,532.29 is: 240,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,523.60 : 428,474.52 = 174,532.29 : x
  2. Step 2: Convert to fraction form
    310,523.60/428,474.52 = 174,532.29/x
  3. Step 3: Cross multiply
    310,523.60x = 428,474.52 × 174,532.29
  4. Step 4: Simplify right side
    310,523.60x = 74,782,639,182.25
  5. Step 5: Solve for x
    x = 74,782,639,182.25/310,523.60
  6. Step 6: Final answer
    x = 240,827.56

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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.