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Finding the Fourth Proportional to 665,896.02, 918,940.05 and 364,090.02

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Solution

The fourth proportional to 665,896.02, 918,940.05 and 364,090.02 is: 502,446.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,896.02 : 918,940.05 = 364,090.02 : x
  2. Step 2: Convert to fraction form
    665,896.02/918,940.05 = 364,090.02/x
  3. Step 3: Cross multiply
    665,896.02x = 918,940.05 × 364,090.02
  4. Step 4: Simplify right side
    665,896.02x = 334,576,901,183.30
  5. Step 5: Solve for x
    x = 334,576,901,183.30/665,896.02
  6. Step 6: Final answer
    x = 502,446.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.