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Finding the Fourth Proportional to 456,936.60, 685,404.90 and 124,512.60

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Solution

The fourth proportional to 456,936.60, 685,404.90 and 124,512.60 is: 186,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,936.60 : 685,404.90 = 124,512.60 : x
  2. Step 2: Convert to fraction form
    456,936.60/685,404.90 = 124,512.60/x
  3. Step 3: Cross multiply
    456,936.60x = 685,404.90 × 124,512.60
  4. Step 4: Simplify right side
    456,936.60x = 85,341,546,151.74
  5. Step 5: Solve for x
    x = 85,341,546,151.74/456,936.60
  6. Step 6: Final answer
    x = 186,768.90

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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.