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Finding the Fourth Proportional to 630,120.44, 945,180.89 and 156,805.80

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Solution

The fourth proportional to 630,120.44, 945,180.89 and 156,805.80 is: 235,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,120.44 : 945,180.89 = 156,805.80 : x
  2. Step 2: Convert to fraction form
    630,120.44/945,180.89 = 156,805.80/x
  3. Step 3: Cross multiply
    630,120.44x = 945,180.89 × 156,805.80
  4. Step 4: Simplify right side
    630,120.44x = 148,209,845,601.16
  5. Step 5: Solve for x
    x = 148,209,845,601.16/630,120.44
  6. Step 6: Final answer
    x = 235,208.76

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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.