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Finding the Fourth Proportional to 627,451.26, 865,882.08 and 340,970.76

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Solution

The fourth proportional to 627,451.26, 865,882.08 and 340,970.76 is: 470,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,451.26 : 865,882.08 = 340,970.76 : x
  2. Step 2: Convert to fraction form
    627,451.26/865,882.08 = 340,970.76/x
  3. Step 3: Cross multiply
    627,451.26x = 865,882.08 × 340,970.76
  4. Step 4: Simplify right side
    627,451.26x = 295,240,470,887.98
  5. Step 5: Solve for x
    x = 295,240,470,887.98/627,451.26
  6. Step 6: Final answer
    x = 470,539.29

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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.