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Finding the Fourth Proportional to 467,128.30, 700,692.45 and 443,800.30

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Solution

The fourth proportional to 467,128.30, 700,692.45 and 443,800.30 is: 665,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,128.30 : 700,692.45 = 443,800.30 : x
  2. Step 2: Convert to fraction form
    467,128.30/700,692.45 = 443,800.30/x
  3. Step 3: Cross multiply
    467,128.30x = 700,692.45 × 443,800.30
  4. Step 4: Simplify right side
    467,128.30x = 310,967,519,517.74
  5. Step 5: Solve for x
    x = 310,967,519,517.74/467,128.30
  6. Step 6: Final answer
    x = 665,700.45

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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.