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Finding the Fourth Proportional to 415,936.60, 623,904.90 and 415,936.60

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Solution

The fourth proportional to 415,936.60, 623,904.90 and 415,936.60 is: 623,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,936.60 : 623,904.90 = 415,936.60 : x
  2. Step 2: Convert to fraction form
    415,936.60/623,904.90 = 415,936.60/x
  3. Step 3: Cross multiply
    415,936.60x = 623,904.90 × 415,936.60
  4. Step 4: Simplify right side
    415,936.60x = 259,504,882,829.34
  5. Step 5: Solve for x
    x = 259,504,882,829.34/415,936.60
  6. Step 6: Final answer
    x = 623,904.90

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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.