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Finding the Fourth Proportional to 318,630.30, 439,709.67 and 184,494.30

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Solution

The fourth proportional to 318,630.30, 439,709.67 and 184,494.30 is: 254,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,630.30 : 439,709.67 = 184,494.30 : x
  2. Step 2: Convert to fraction form
    318,630.30/439,709.67 = 184,494.30/x
  3. Step 3: Cross multiply
    318,630.30x = 439,709.67 × 184,494.30
  4. Step 4: Simplify right side
    318,630.30x = 81,123,927,769.88
  5. Step 5: Solve for x
    x = 81,123,927,769.88/318,630.30
  6. Step 6: Final answer
    x = 254,602.05

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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.