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Finding the Fourth Proportional to 536,389.20, 805,286.97 and 359,686.89

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Solution

The fourth proportional to 536,389.20, 805,286.97 and 359,686.89 is: 540,001.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,389.20 : 805,286.97 = 359,686.89 : x
  2. Step 2: Convert to fraction form
    536,389.20/805,286.97 = 359,686.89/x
  3. Step 3: Cross multiply
    536,389.20x = 805,286.97 × 359,686.89
  4. Step 4: Simplify right side
    536,389.20x = 289,651,165,796.82
  5. Step 5: Solve for x
    x = 289,651,165,796.82/536,389.20
  6. Step 6: Final answer
    x = 540,001.86

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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.