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Finding the Fourth Proportional to 506,605.20, 699,710.04 and 404,982.60

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Solution

The fourth proportional to 506,605.20, 699,710.04 and 404,982.60 is: 559,351.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,605.20 : 699,710.04 = 404,982.60 : x
  2. Step 2: Convert to fraction form
    506,605.20/699,710.04 = 404,982.60/x
  3. Step 3: Cross multiply
    506,605.20x = 699,710.04 × 404,982.60
  4. Step 4: Simplify right side
    506,605.20x = 283,370,391,245.30
  5. Step 5: Solve for x
    x = 283,370,391,245.30/506,605.20
  6. Step 6: Final answer
    x = 559,351.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.