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Finding the Fourth Proportional to 467,640.42, 645,343.48 and 252,780.48

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Solution

The fourth proportional to 467,640.42, 645,343.48 and 252,780.48 is: 348,836.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,640.42 : 645,343.48 = 252,780.48 : x
  2. Step 2: Convert to fraction form
    467,640.42/645,343.48 = 252,780.48/x
  3. Step 3: Cross multiply
    467,640.42x = 645,343.48 × 252,780.48
  4. Step 4: Simplify right side
    467,640.42x = 163,130,234,955.25
  5. Step 5: Solve for x
    x = 163,130,234,955.25/467,640.42
  6. Step 6: Final answer
    x = 348,836.90

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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.