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Finding the Fourth Proportional to 448,083.20, 672,124.80 and 399,094.40

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Solution

The fourth proportional to 448,083.20, 672,124.80 and 399,094.40 is: 598,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,083.20 : 672,124.80 = 399,094.40 : x
  2. Step 2: Convert to fraction form
    448,083.20/672,124.80 = 399,094.40/x
  3. Step 3: Cross multiply
    448,083.20x = 672,124.80 × 399,094.40
  4. Step 4: Simplify right side
    448,083.20x = 268,241,243,781.12
  5. Step 5: Solve for x
    x = 268,241,243,781.12/448,083.20
  6. Step 6: Final answer
    x = 598,641.60

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