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Finding the Fourth Proportional to 627,640.60, 940,424.10 and 534,328.60

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Solution

The fourth proportional to 627,640.60, 940,424.10 and 534,328.60 is: 800,610.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,640.60 : 940,424.10 = 534,328.60 : x
  2. Step 2: Convert to fraction form
    627,640.60/940,424.10 = 534,328.60/x
  3. Step 3: Cross multiply
    627,640.60x = 940,424.10 × 534,328.60
  4. Step 4: Simplify right side
    627,640.60x = 502,495,492,759.26
  5. Step 5: Solve for x
    x = 502,495,492,759.26/627,640.60
  6. Step 6: Final answer
    x = 800,610.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.