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Finding the Fourth Proportional to 587,099.20, 880,648.80 and 487,458.40

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Solution

The fourth proportional to 587,099.20, 880,648.80 and 487,458.40 is: 731,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,099.20 : 880,648.80 = 487,458.40 : x
  2. Step 2: Convert to fraction form
    587,099.20/880,648.80 = 487,458.40/x
  3. Step 3: Cross multiply
    587,099.20x = 880,648.80 × 487,458.40
  4. Step 4: Simplify right side
    587,099.20x = 429,279,655,009.92
  5. Step 5: Solve for x
    x = 429,279,655,009.92/587,099.20
  6. Step 6: Final answer
    x = 731,187.60

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