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Finding the Fourth Proportional to 318,632.30, 439,712.43 and 184,496.30

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Solution

The fourth proportional to 318,632.30, 439,712.43 and 184,496.30 is: 254,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,632.30 : 439,712.43 = 184,496.30 : x
  2. Step 2: Convert to fraction form
    318,632.30/439,712.43 = 184,496.30/x
  3. Step 3: Cross multiply
    318,632.30x = 439,712.43 × 184,496.30
  4. Step 4: Simplify right side
    318,632.30x = 81,125,316,399.01
  5. Step 5: Solve for x
    x = 81,125,316,399.01/318,632.30
  6. Step 6: Final answer
    x = 254,604.81

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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.