Home / 415,845.27-623,844.77-131,607.45

Finding the Fourth Proportional to 415,845.27, 623,844.77 and 131,607.45

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Solution

The fourth proportional to 415,845.27, 623,844.77 and 131,607.45 is: 197,435.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,845.27 : 623,844.77 = 131,607.45 : x
  2. Step 2: Convert to fraction form
    415,845.27/623,844.77 = 131,607.45/x
  3. Step 3: Cross multiply
    415,845.27x = 623,844.77 × 131,607.45
  4. Step 4: Simplify right side
    415,845.27x = 82,102,618,717.50
  5. Step 5: Solve for x
    x = 82,102,618,717.50/415,845.27
  6. Step 6: Final answer
    x = 197,435.50

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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.