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Finding the Fourth Proportional to 304,316.80, 456,475.20 and 257,077.60

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Solution

The fourth proportional to 304,316.80, 456,475.20 and 257,077.60 is: 385,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,316.80 : 456,475.20 = 257,077.60 : x
  2. Step 2: Convert to fraction form
    304,316.80/456,475.20 = 257,077.60/x
  3. Step 3: Cross multiply
    304,316.80x = 456,475.20 × 257,077.60
  4. Step 4: Simplify right side
    304,316.80x = 117,349,548,875.52
  5. Step 5: Solve for x
    x = 117,349,548,875.52/304,316.80
  6. Step 6: Final answer
    x = 385,616.40

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