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Finding the Fourth Proportional to 519,153.66, 716,430.71 and 289,708.50

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Solution

The fourth proportional to 519,153.66, 716,430.71 and 289,708.50 is: 399,796.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,153.66 : 716,430.71 = 289,708.50 : x
  2. Step 2: Convert to fraction form
    519,153.66/716,430.71 = 289,708.50/x
  3. Step 3: Cross multiply
    519,153.66x = 716,430.71 × 289,708.50
  4. Step 4: Simplify right side
    519,153.66x = 207,556,066,348.04
  5. Step 5: Solve for x
    x = 207,556,066,348.04/519,153.66
  6. Step 6: Final answer
    x = 399,796.98

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