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Finding the Fourth Proportional to 432,764.70, 649,147.05 and 432,764.70

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Solution

The fourth proportional to 432,764.70, 649,147.05 and 432,764.70 is: 649,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,764.70 : 649,147.05 = 432,764.70 : x
  2. Step 2: Convert to fraction form
    432,764.70/649,147.05 = 432,764.70/x
  3. Step 3: Cross multiply
    432,764.70x = 649,147.05 × 432,764.70
  4. Step 4: Simplify right side
    432,764.70x = 280,927,928,349.14
  5. Step 5: Solve for x
    x = 280,927,928,349.14/432,764.70
  6. Step 6: Final answer
    x = 649,147.05

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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.