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Finding the Fourth Proportional to 627,466.57, 865,903.12 and 340,986.01

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Solution

The fourth proportional to 627,466.57, 865,903.12 and 340,986.01 is: 470,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,466.57 : 865,903.12 = 340,986.01 : x
  2. Step 2: Convert to fraction form
    627,466.57/865,903.12 = 340,986.01/x
  3. Step 3: Cross multiply
    627,466.57x = 865,903.12 × 340,986.01
  4. Step 4: Simplify right side
    627,466.57x = 295,260,849,935.35
  5. Step 5: Solve for x
    x = 295,260,849,935.35/627,466.57
  6. Step 6: Final answer
    x = 470,560.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.