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Finding the Fourth Proportional to 627,125.92, 865,440.16 and 340,651.60

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Solution

The fourth proportional to 627,125.92, 865,440.16 and 340,651.60 is: 470,102.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,125.92 : 865,440.16 = 340,651.60 : x
  2. Step 2: Convert to fraction form
    627,125.92/865,440.16 = 340,651.60/x
  3. Step 3: Cross multiply
    627,125.92x = 865,440.16 × 340,651.60
  4. Step 4: Simplify right side
    627,125.92x = 294,813,575,208.26
  5. Step 5: Solve for x
    x = 294,813,575,208.26/627,125.92
  6. Step 6: Final answer
    x = 470,102.68

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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.