Home / 415,359.45-623,085.62-131,090.45

Finding the Fourth Proportional to 415,359.45, 623,085.62 and 131,090.45

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Solution

The fourth proportional to 415,359.45, 623,085.62 and 131,090.45 is: 196,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,359.45 : 623,085.62 = 131,090.45 : x
  2. Step 2: Convert to fraction form
    415,359.45/623,085.62 = 131,090.45/x
  3. Step 3: Cross multiply
    415,359.45x = 623,085.62 × 131,090.45
  4. Step 4: Simplify right side
    415,359.45x = 81,680,570,543.45
  5. Step 5: Solve for x
    x = 81,680,570,543.45/415,359.45
  6. Step 6: Final answer
    x = 196,650.32

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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.