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Finding the Fourth Proportional to 644,266.80, 966,154.16 and 194,838.30

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Solution

The fourth proportional to 644,266.80, 966,154.16 and 194,838.30 is: 292,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,266.80 : 966,154.16 = 194,838.30 : x
  2. Step 2: Convert to fraction form
    644,266.80/966,154.16 = 194,838.30/x
  3. Step 3: Cross multiply
    644,266.80x = 966,154.16 × 194,838.30
  4. Step 4: Simplify right side
    644,266.80x = 188,243,834,559.42
  5. Step 5: Solve for x
    x = 188,243,834,559.42/644,266.80
  6. Step 6: Final answer
    x = 292,183.04

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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.