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Finding the Fourth Proportional to 627,569.68, 866,043.11 and 341,089.79

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Solution

The fourth proportional to 627,569.68, 866,043.11 and 341,089.79 is: 470,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,569.68 : 866,043.11 = 341,089.79 : x
  2. Step 2: Convert to fraction form
    627,569.68/866,043.11 = 341,089.79/x
  3. Step 3: Cross multiply
    627,569.68x = 866,043.11 × 341,089.79
  4. Step 4: Simplify right side
    627,569.68x = 295,398,460,815.40
  5. Step 5: Solve for x
    x = 295,398,460,815.40/627,569.68
  6. Step 6: Final answer
    x = 470,702.25

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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.