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Finding the Fourth Proportional to 569,111.70, 853,667.55 and 303,391.20

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Solution

The fourth proportional to 569,111.70, 853,667.55 and 303,391.20 is: 455,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,111.70 : 853,667.55 = 303,391.20 : x
  2. Step 2: Convert to fraction form
    569,111.70/853,667.55 = 303,391.20/x
  3. Step 3: Cross multiply
    569,111.70x = 853,667.55 × 303,391.20
  4. Step 4: Simplify right side
    569,111.70x = 258,995,222,395.56
  5. Step 5: Solve for x
    x = 258,995,222,395.56/569,111.70
  6. Step 6: Final answer
    x = 455,086.80

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Similar ratio
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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.