Home / 415,629.68-623,354.02-112,016.75

Finding the Fourth Proportional to 415,629.68, 623,354.02 and 112,016.75

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Solution

The fourth proportional to 415,629.68, 623,354.02 and 112,016.75 is: 168,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,629.68 : 623,354.02 = 112,016.75 : x
  2. Step 2: Convert to fraction form
    415,629.68/623,354.02 = 112,016.75/x
  3. Step 3: Cross multiply
    415,629.68x = 623,354.02 × 112,016.75
  4. Step 4: Simplify right side
    415,629.68x = 69,826,088,023.02
  5. Step 5: Solve for x
    x = 69,826,088,023.02/415,629.68
  6. Step 6: Final answer
    x = 168,000.73

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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.