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Finding the Fourth Proportional to 368,380.82, 508,360.46 and 207,235.82

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Solution

The fourth proportional to 368,380.82, 508,360.46 and 207,235.82 is: 285,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,380.82 : 508,360.46 = 207,235.82 : x
  2. Step 2: Convert to fraction form
    368,380.82/508,360.46 = 207,235.82/x
  3. Step 3: Cross multiply
    368,380.82x = 508,360.46 × 207,235.82
  4. Step 4: Simplify right side
    368,380.82x = 105,350,497,018.40
  5. Step 5: Solve for x
    x = 105,350,497,018.40/368,380.82
  6. Step 6: Final answer
    x = 285,982.58

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1.5x scale

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.