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Finding the Fourth Proportional to 619,261.10, 928,672.95 and 219,914.90

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Solution

The fourth proportional to 619,261.10, 928,672.95 and 219,914.90 is: 329,794.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,261.10 : 928,672.95 = 219,914.90 : x
  2. Step 2: Convert to fraction form
    619,261.10/928,672.95 = 219,914.90/x
  3. Step 3: Cross multiply
    619,261.10x = 928,672.95 × 219,914.90
  4. Step 4: Simplify right side
    619,261.10x = 204,229,018,931.96
  5. Step 5: Solve for x
    x = 204,229,018,931.96/619,261.10
  6. Step 6: Final answer
    x = 329,794.68

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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.