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Finding the Fourth Proportional to 363,561.78, 501,585.38 and 210,516.42

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Solution

The fourth proportional to 363,561.78, 501,585.38 and 210,516.42 is: 290,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,561.78 : 501,585.38 = 210,516.42 : x
  2. Step 2: Convert to fraction form
    363,561.78/501,585.38 = 210,516.42/x
  3. Step 3: Cross multiply
    363,561.78x = 501,585.38 × 210,516.42
  4. Step 4: Simplify right side
    363,561.78x = 105,591,958,521.94
  5. Step 5: Solve for x
    x = 105,591,958,521.94/363,561.78
  6. Step 6: Final answer
    x = 290,437.46

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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.