Home / 415,844.02-623,842.89-131,606.20

Finding the Fourth Proportional to 415,844.02, 623,842.89 and 131,606.20

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Solution

The fourth proportional to 415,844.02, 623,842.89 and 131,606.20 is: 197,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,844.02 : 623,842.89 = 131,606.20 : x
  2. Step 2: Convert to fraction form
    415,844.02/623,842.89 = 131,606.20/x
  3. Step 3: Cross multiply
    415,844.02x = 623,842.89 × 131,606.20
  4. Step 4: Simplify right side
    415,844.02x = 82,101,592,149.92
  5. Step 5: Solve for x
    x = 82,101,592,149.92/415,844.02
  6. Step 6: Final answer
    x = 197,433.62

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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.