Home / 318,000.20-476,309.10-193,123.40

Finding the Fourth Proportional to 318,000.20, 476,309.10 and 193,123.40

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Solution

The fourth proportional to 318,000.20, 476,309.10 and 193,123.40 is: 289,265.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,000.20 : 476,309.10 = 193,123.40 : x
  2. Step 2: Convert to fraction form
    318,000.20/476,309.10 = 193,123.40/x
  3. Step 3: Cross multiply
    318,000.20x = 476,309.10 × 193,123.40
  4. Step 4: Simplify right side
    318,000.20x = 91,986,432,842.94
  5. Step 5: Solve for x
    x = 91,986,432,842.94/318,000.20
  6. Step 6: Final answer
    x = 289,265.33

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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.