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Finding the Fourth Proportional to 660,546.17, 991,200.62 and 356,941.37

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Solution

The fourth proportional to 660,546.17, 991,200.62 and 356,941.37 is: 535,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,546.17 : 991,200.62 = 356,941.37 : x
  2. Step 2: Convert to fraction form
    660,546.17/991,200.62 = 356,941.37/x
  3. Step 3: Cross multiply
    660,546.17x = 991,200.62 × 356,941.37
  4. Step 4: Simplify right side
    660,546.17x = 353,800,507,247.65
  5. Step 5: Solve for x
    x = 353,800,507,247.65/660,546.17
  6. Step 6: Final answer
    x = 535,618.13

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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.