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Finding the Fourth Proportional to 528,083.10, 789,820.65 and 472,326.30

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Solution

The fourth proportional to 528,083.10, 789,820.65 and 472,326.30 is: 706,428.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,083.10 : 789,820.65 = 472,326.30 : x
  2. Step 2: Convert to fraction form
    528,083.10/789,820.65 = 472,326.30/x
  3. Step 3: Cross multiply
    528,083.10x = 789,820.65 × 472,326.30
  4. Step 4: Simplify right side
    528,083.10x = 373,053,065,278.10
  5. Step 5: Solve for x
    x = 373,053,065,278.10/528,083.10
  6. Step 6: Final answer
    x = 706,428.71

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