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Finding the Third Proportional to 430.50 and 732

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Solution

The third proportional to 430.50 and 732 is: 1,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.50 : 732 = 732 : x
  2. Step 2: Convert to fraction form
    430.50/732 = 732/x
  3. Step 3: Cross multiply
    430.50x = 732 × 732
  4. Step 4: Simplify right side
    430.50x = 535,824
  5. Step 5: Solve for x
    x = 535,824/430.50
  6. Step 6: Final answer
    x = 1,244.66

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.