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Finding the Fourth Proportional to 432,964.48, 649,171.56 and 379,763.28

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Solution

The fourth proportional to 432,964.48, 649,171.56 and 379,763.28 is: 569,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,964.48 : 649,171.56 = 379,763.28 : x
  2. Step 2: Convert to fraction form
    432,964.48/649,171.56 = 379,763.28/x
  3. Step 3: Cross multiply
    432,964.48x = 649,171.56 × 379,763.28
  4. Step 4: Simplify right side
    432,964.48x = 246,531,520,908.32
  5. Step 5: Solve for x
    x = 246,531,520,908.32/432,964.48
  6. Step 6: Final answer
    x = 569,403.57

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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.