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Finding the Fourth Proportional to 627,360.71, 865,763.05 and 340,880.80

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Solution

The fourth proportional to 627,360.71, 865,763.05 and 340,880.80 is: 470,418.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,360.71 : 865,763.05 = 340,880.80 : x
  2. Step 2: Convert to fraction form
    627,360.71/865,763.05 = 340,880.80/x
  3. Step 3: Cross multiply
    627,360.71x = 865,763.05 × 340,880.80
  4. Step 4: Simplify right side
    627,360.71x = 295,121,996,765.63
  5. Step 5: Solve for x
    x = 295,121,996,765.63/627,360.71
  6. Step 6: Final answer
    x = 470,418.36

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1.5x scale

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.