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Finding the Fourth Proportional to 310,890.75, 429,029.24 and 176,754.75

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Solution

The fourth proportional to 310,890.75, 429,029.24 and 176,754.75 is: 243,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,890.75 : 429,029.24 = 176,754.75 : x
  2. Step 2: Convert to fraction form
    310,890.75/429,029.24 = 176,754.75/x
  3. Step 3: Cross multiply
    310,890.75x = 429,029.24 × 176,754.75
  4. Step 4: Simplify right side
    310,890.75x = 75,832,955,175.12
  5. Step 5: Solve for x
    x = 75,832,955,175.12/310,890.75
  6. Step 6: Final answer
    x = 243,921.56

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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.