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Finding the Fourth Proportional to 432,820.09, 652,184.45 and 355,662.73

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Solution

The fourth proportional to 432,820.09, 652,184.45 and 355,662.73 is: 535,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,820.09 : 652,184.45 = 355,662.73 : x
  2. Step 2: Convert to fraction form
    432,820.09/652,184.45 = 355,662.73/x
  3. Step 3: Cross multiply
    432,820.09x = 652,184.45 × 355,662.73
  4. Step 4: Simplify right side
    432,820.09x = 231,957,701,950.55
  5. Step 5: Solve for x
    x = 231,957,701,950.55/432,820.09
  6. Step 6: Final answer
    x = 535,921.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.