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Finding the Fourth Proportional to 646,578.96, 892,306.62 and 360,099

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Solution

The fourth proportional to 646,578.96, 892,306.62 and 360,099 is: 496,952.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,578.96 : 892,306.62 = 360,099 : x
  2. Step 2: Convert to fraction form
    646,578.96/892,306.62 = 360,099/x
  3. Step 3: Cross multiply
    646,578.96x = 892,306.62 × 360,099
  4. Step 4: Simplify right side
    646,578.96x = 321,318,721,555.38
  5. Step 5: Solve for x
    x = 321,318,721,555.38/646,578.96
  6. Step 6: Final answer
    x = 496,952.02

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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.