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Finding the Fourth Proportional to 463,799.76, 640,169.64 and 272,874.66

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Solution

The fourth proportional to 463,799.76, 640,169.64 and 272,874.66 is: 376,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,799.76 : 640,169.64 = 272,874.66 : x
  2. Step 2: Convert to fraction form
    463,799.76/640,169.64 = 272,874.66/x
  3. Step 3: Cross multiply
    463,799.76x = 640,169.64 × 272,874.66
  4. Step 4: Simplify right side
    463,799.76x = 174,686,072,857.32
  5. Step 5: Solve for x
    x = 174,686,072,857.32/463,799.76
  6. Step 6: Final answer
    x = 376,641.15

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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.