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Finding the Fourth Proportional to 658,047.55, 908,105.96 and 356,241.55

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Solution

The fourth proportional to 658,047.55, 908,105.96 and 356,241.55 is: 491,613.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,047.55 : 908,105.96 = 356,241.55 : x
  2. Step 2: Convert to fraction form
    658,047.55/908,105.96 = 356,241.55/x
  3. Step 3: Cross multiply
    658,047.55x = 908,105.96 × 356,241.55
  4. Step 4: Simplify right side
    658,047.55x = 323,505,072,973.43
  5. Step 5: Solve for x
    x = 323,505,072,973.43/658,047.55
  6. Step 6: Final answer
    x = 491,613.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.