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Finding the Fourth Proportional to 627,354.26, 865,754.16 and 340,874.36

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Solution

The fourth proportional to 627,354.26, 865,754.16 and 340,874.36 is: 470,409.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,354.26 : 865,754.16 = 340,874.36 : x
  2. Step 2: Convert to fraction form
    627,354.26/865,754.16 = 340,874.36/x
  3. Step 3: Cross multiply
    627,354.26x = 865,754.16 × 340,874.36
  4. Step 4: Simplify right side
    627,354.26x = 295,113,395,207.34
  5. Step 5: Solve for x
    x = 295,113,395,207.34/627,354.26
  6. Step 6: Final answer
    x = 470,409.49

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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.