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Finding the Third Proportional to 586.50 and 692.25

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Solution

The third proportional to 586.50 and 692.25 is: 817.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.50 : 692.25 = 692.25 : x
  2. Step 2: Convert to fraction form
    586.50/692.25 = 692.25/x
  3. Step 3: Cross multiply
    586.50x = 692.25 × 692.25
  4. Step 4: Simplify right side
    586.50x = 479,210.06
  5. Step 5: Solve for x
    x = 479,210.06/586.50
  6. Step 6: Final answer
    x = 817.07

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.