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Finding the Fourth Proportional to 476,692.55, 657,840.47 and 258,905.48

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Solution

The fourth proportional to 476,692.55, 657,840.47 and 258,905.48 is: 357,292.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,692.55 : 657,840.47 = 258,905.48 : x
  2. Step 2: Convert to fraction form
    476,692.55/657,840.47 = 258,905.48/x
  3. Step 3: Cross multiply
    476,692.55x = 657,840.47 × 258,905.48
  4. Step 4: Simplify right side
    476,692.55x = 170,318,502,648.78
  5. Step 5: Solve for x
    x = 170,318,502,648.78/476,692.55
  6. Step 6: Final answer
    x = 357,292.14

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