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Finding the Fourth Proportional to 456,650.55, 684,975.83 and 443,528.55

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Solution

The fourth proportional to 456,650.55, 684,975.83 and 443,528.55 is: 665,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,650.55 : 684,975.83 = 443,528.55 : x
  2. Step 2: Convert to fraction form
    456,650.55/684,975.83 = 443,528.55/x
  3. Step 3: Cross multiply
    456,650.55x = 684,975.83 × 443,528.55
  4. Step 4: Simplify right side
    456,650.55x = 303,806,334,447.30
  5. Step 5: Solve for x
    x = 303,806,334,447.30/456,650.55
  6. Step 6: Final answer
    x = 665,292.83

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Double scale
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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.