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Finding the Fourth Proportional to 365,560.10, 548,340.15 and 259,271.90

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Solution

The fourth proportional to 365,560.10, 548,340.15 and 259,271.90 is: 388,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,560.10 : 548,340.15 = 259,271.90 : x
  2. Step 2: Convert to fraction form
    365,560.10/548,340.15 = 259,271.90/x
  3. Step 3: Cross multiply
    365,560.10x = 548,340.15 × 259,271.90
  4. Step 4: Simplify right side
    365,560.10x = 142,169,192,536.79
  5. Step 5: Solve for x
    x = 142,169,192,536.79/365,560.10
  6. Step 6: Final answer
    x = 388,907.85

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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.