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Finding the Fourth Proportional to 631,713.12, 948,225.96 and 365,992.80

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Solution

The fourth proportional to 631,713.12, 948,225.96 and 365,992.80 is: 549,369.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,713.12 : 948,225.96 = 365,992.80 : x
  2. Step 2: Convert to fraction form
    631,713.12/948,225.96 = 365,992.80/x
  3. Step 3: Cross multiply
    631,713.12x = 948,225.96 × 365,992.80
  4. Step 4: Simplify right side
    631,713.12x = 347,043,874,133.09
  5. Step 5: Solve for x
    x = 347,043,874,133.09/631,713.12
  6. Step 6: Final answer
    x = 549,369.43

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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.