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Finding the Fourth Proportional to 435,672.15, 652,561.86 and 210,560.48

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Solution

The fourth proportional to 435,672.15, 652,561.86 and 210,560.48 is: 315,383.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,672.15 : 652,561.86 = 210,560.48 : x
  2. Step 2: Convert to fraction form
    435,672.15/652,561.86 = 210,560.48/x
  3. Step 3: Cross multiply
    435,672.15x = 652,561.86 × 210,560.48
  4. Step 4: Simplify right side
    435,672.15x = 137,403,735,208.48
  5. Step 5: Solve for x
    x = 137,403,735,208.48/435,672.15
  6. Step 6: Final answer
    x = 315,383.33

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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.