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Finding the Fourth Proportional to 467,428.48, 645,051.12 and 252,568.48

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Solution

The fourth proportional to 467,428.48, 645,051.12 and 252,568.48 is: 348,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,428.48 : 645,051.12 = 252,568.48 : x
  2. Step 2: Convert to fraction form
    467,428.48/645,051.12 = 252,568.48/x
  3. Step 3: Cross multiply
    467,428.48x = 645,051.12 × 252,568.48
  4. Step 4: Simplify right side
    467,428.48x = 162,919,580,900.70
  5. Step 5: Solve for x
    x = 162,919,580,900.70/467,428.48
  6. Step 6: Final answer
    x = 348,544.40

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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.