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Finding the Fourth Proportional to 645,099.68, 967,648.44 and 266,233.52

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Solution

The fourth proportional to 645,099.68, 967,648.44 and 266,233.52 is: 399,349.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,099.68 : 967,648.44 = 266,233.52 : x
  2. Step 2: Convert to fraction form
    645,099.68/967,648.44 = 266,233.52/x
  3. Step 3: Cross multiply
    645,099.68x = 967,648.44 × 266,233.52
  4. Step 4: Simplify right side
    645,099.68x = 257,620,450,303.71
  5. Step 5: Solve for x
    x = 257,620,450,303.71/645,099.68
  6. Step 6: Final answer
    x = 399,349.83

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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.