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Finding the Third Proportional to 580.88 and 910.50

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Solution

The third proportional to 580.88 and 910.50 is: 1,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.88 : 910.50 = 910.50 : x
  2. Step 2: Convert to fraction form
    580.88/910.50 = 910.50/x
  3. Step 3: Cross multiply
    580.88x = 910.50 × 910.50
  4. Step 4: Simplify right side
    580.88x = 829,010.25
  5. Step 5: Solve for x
    x = 829,010.25/580.88
  6. Step 6: Final answer
    x = 1,427.17

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.