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Finding the Fourth Proportional to 644,813.55, 967,219.11 and 171,499.41

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Solution

The fourth proportional to 644,813.55, 967,219.11 and 171,499.41 is: 257,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,813.55 : 967,219.11 = 171,499.41 : x
  2. Step 2: Convert to fraction form
    644,813.55/967,219.11 = 171,499.41/x
  3. Step 3: Cross multiply
    644,813.55x = 967,219.11 × 171,499.41
  4. Step 4: Simplify right side
    644,813.55x = 165,877,506,705.73
  5. Step 5: Solve for x
    x = 165,877,506,705.73/644,813.55
  6. Step 6: Final answer
    x = 257,248.79

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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.