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Finding the Fourth Proportional to 242,311.20, 362,775.60 and 214,663.20

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Solution

The fourth proportional to 242,311.20, 362,775.60 and 214,663.20 is: 321,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,311.20 : 362,775.60 = 214,663.20 : x
  2. Step 2: Convert to fraction form
    242,311.20/362,775.60 = 214,663.20/x
  3. Step 3: Cross multiply
    242,311.20x = 362,775.60 × 214,663.20
  4. Step 4: Simplify right side
    242,311.20x = 77,874,571,177.92
  5. Step 5: Solve for x
    x = 77,874,571,177.92/242,311.20
  6. Step 6: Final answer
    x = 321,382.47

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1.5x scale

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.