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Finding the Fourth Proportional to 456,825.30, 685,237.95 and 124,401.30

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Solution

The fourth proportional to 456,825.30, 685,237.95 and 124,401.30 is: 186,601.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,825.30 : 685,237.95 = 124,401.30 : x
  2. Step 2: Convert to fraction form
    456,825.30/685,237.95 = 124,401.30/x
  3. Step 3: Cross multiply
    456,825.30x = 685,237.95 × 124,401.30
  4. Step 4: Simplify right side
    456,825.30x = 85,244,491,789.34
  5. Step 5: Solve for x
    x = 85,244,491,789.34/456,825.30
  6. Step 6: Final answer
    x = 186,601.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.