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Finding the Fourth Proportional to 384,764.10, 577,146.15 and 319,228.10

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Solution

The fourth proportional to 384,764.10, 577,146.15 and 319,228.10 is: 478,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,764.10 : 577,146.15 = 319,228.10 : x
  2. Step 2: Convert to fraction form
    384,764.10/577,146.15 = 319,228.10/x
  3. Step 3: Cross multiply
    384,764.10x = 577,146.15 × 319,228.10
  4. Step 4: Simplify right side
    384,764.10x = 184,241,268,886.82
  5. Step 5: Solve for x
    x = 184,241,268,886.82/384,764.10
  6. Step 6: Final answer
    x = 478,842.15

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