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Finding the Fourth Proportional to 403,873.54, 557,440.47 and 251,027.17

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Solution

The fourth proportional to 403,873.54, 557,440.47 and 251,027.17 is: 346,476.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,873.54 : 557,440.47 = 251,027.17 : x
  2. Step 2: Convert to fraction form
    403,873.54/557,440.47 = 251,027.17/x
  3. Step 3: Cross multiply
    403,873.54x = 557,440.47 × 251,027.17
  4. Step 4: Simplify right side
    403,873.54x = 139,932,700,840.37
  5. Step 5: Solve for x
    x = 139,932,700,840.37/403,873.54
  6. Step 6: Final answer
    x = 346,476.53

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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.