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Finding the Fourth Proportional to 318,519.64, 477,674.82 and 141,022.84

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Solution

The fourth proportional to 318,519.64, 477,674.82 and 141,022.84 is: 211,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,519.64 : 477,674.82 = 141,022.84 : x
  2. Step 2: Convert to fraction form
    318,519.64/477,674.82 = 141,022.84/x
  3. Step 3: Cross multiply
    318,519.64x = 477,674.82 × 141,022.84
  4. Step 4: Simplify right side
    318,519.64x = 67,363,059,712.89
  5. Step 5: Solve for x
    x = 67,363,059,712.89/318,519.64
  6. Step 6: Final answer
    x = 211,487.93

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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.