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Finding the Fourth Proportional to 644,030.20, 966,045.30 and 194,820.40

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Solution

The fourth proportional to 644,030.20, 966,045.30 and 194,820.40 is: 292,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,030.20 : 966,045.30 = 194,820.40 : x
  2. Step 2: Convert to fraction form
    644,030.20/966,045.30 = 194,820.40/x
  3. Step 3: Cross multiply
    644,030.20x = 966,045.30 × 194,820.40
  4. Step 4: Simplify right side
    644,030.20x = 188,205,331,764.12
  5. Step 5: Solve for x
    x = 188,205,331,764.12/644,030.20
  6. Step 6: Final answer
    x = 292,230.60

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Similar ratio
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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.