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Finding the Fourth Proportional to 463,149.64, 638,943.60 and 272,076.82

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Solution

The fourth proportional to 463,149.64, 638,943.60 and 272,076.82 is: 375,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,149.64 : 638,943.60 = 272,076.82 : x
  2. Step 2: Convert to fraction form
    463,149.64/638,943.60 = 272,076.82/x
  3. Step 3: Cross multiply
    463,149.64x = 638,943.60 × 272,076.82
  4. Step 4: Simplify right side
    463,149.64x = 173,841,742,847.35
  5. Step 5: Solve for x
    x = 173,841,742,847.35/463,149.64
  6. Step 6: Final answer
    x = 375,346.82

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1.5x scale

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.