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Finding the Fourth Proportional to 579,506.95, 869,260.43 and 366,930.55

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Solution

The fourth proportional to 579,506.95, 869,260.43 and 366,930.55 is: 550,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,506.95 : 869,260.43 = 366,930.55 : x
  2. Step 2: Convert to fraction form
    579,506.95/869,260.43 = 366,930.55/x
  3. Step 3: Cross multiply
    579,506.95x = 869,260.43 × 366,930.55
  4. Step 4: Simplify right side
    579,506.95x = 318,958,207,673.14
  5. Step 5: Solve for x
    x = 318,958,207,673.14/579,506.95
  6. Step 6: Final answer
    x = 550,395.83

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Double scale
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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.