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Finding the Fourth Proportional to 665,898.90, 918,944.02 and 364,092.90

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Solution

The fourth proportional to 665,898.90, 918,944.02 and 364,092.90 is: 502,450.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,898.90 : 918,944.02 = 364,092.90 : x
  2. Step 2: Convert to fraction form
    665,898.90/918,944.02 = 364,092.90/x
  3. Step 3: Cross multiply
    665,898.90x = 918,944.02 × 364,092.90
  4. Step 4: Simplify right side
    665,898.90x = 334,580,993,179.46
  5. Step 5: Solve for x
    x = 334,580,993,179.46/665,898.90
  6. Step 6: Final answer
    x = 502,450.14

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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.