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Finding the Fourth Proportional to 674,633.96, 930,958.50 and 372,809.96

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Solution

The fourth proportional to 674,633.96, 930,958.50 and 372,809.96 is: 514,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,633.96 : 930,958.50 = 372,809.96 : x
  2. Step 2: Convert to fraction form
    674,633.96/930,958.50 = 372,809.96/x
  3. Step 3: Cross multiply
    674,633.96x = 930,958.50 × 372,809.96
  4. Step 4: Simplify right side
    674,633.96x = 347,070,601,146.66
  5. Step 5: Solve for x
    x = 347,070,601,146.66/674,633.96
  6. Step 6: Final answer
    x = 514,457.65

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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.