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Finding the Fourth Proportional to 706,216.80, 1,059,325.20 and 617,643.30

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Solution

The fourth proportional to 706,216.80, 1,059,325.20 and 617,643.30 is: 926,464.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,216.80 : 1,059,325.20 = 617,643.30 : x
  2. Step 2: Convert to fraction form
    706,216.80/1,059,325.20 = 617,643.30/x
  3. Step 3: Cross multiply
    706,216.80x = 1,059,325.20 × 617,643.30
  4. Step 4: Simplify right side
    706,216.80x = 654,285,112,301.16
  5. Step 5: Solve for x
    x = 654,285,112,301.16/706,216.80
  6. Step 6: Final answer
    x = 926,464.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.