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Finding the Fourth Proportional to 448,996.64, 619,589.20 and 247,792.16

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Solution

The fourth proportional to 448,996.64, 619,589.20 and 247,792.16 is: 341,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,996.64 : 619,589.20 = 247,792.16 : x
  2. Step 2: Convert to fraction form
    448,996.64/619,589.20 = 247,792.16/x
  3. Step 3: Cross multiply
    448,996.64x = 619,589.20 × 247,792.16
  4. Step 4: Simplify right side
    448,996.64x = 153,529,346,180.67
  5. Step 5: Solve for x
    x = 153,529,346,180.67/448,996.64
  6. Step 6: Final answer
    x = 341,938.74

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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.