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Finding the Fourth Proportional to 627,637.60, 940,419.60 and 534,325.60

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Solution

The fourth proportional to 627,637.60, 940,419.60 and 534,325.60 is: 800,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,637.60 : 940,419.60 = 534,325.60 : x
  2. Step 2: Convert to fraction form
    627,637.60/940,419.60 = 534,325.60/x
  3. Step 3: Cross multiply
    627,637.60x = 940,419.60 × 534,325.60
  4. Step 4: Simplify right side
    627,637.60x = 502,490,267,021.76
  5. Step 5: Solve for x
    x = 502,490,267,021.76/627,637.60
  6. Step 6: Final answer
    x = 800,605.74

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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.