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Finding the Fourth Proportional to 497,311.20, 745,088.40 and 480,866.40

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Solution

The fourth proportional to 497,311.20, 745,088.40 and 480,866.40 is: 720,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,311.20 : 745,088.40 = 480,866.40 : x
  2. Step 2: Convert to fraction form
    497,311.20/745,088.40 = 480,866.40/x
  3. Step 3: Cross multiply
    497,311.20x = 745,088.40 × 480,866.40
  4. Step 4: Simplify right side
    497,311.20x = 358,287,976,589.76
  5. Step 5: Solve for x
    x = 358,287,976,589.76/497,311.20
  6. Step 6: Final answer
    x = 720,450.25

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