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Finding the Fourth Proportional to 534,248.21, 800,100.16 and 309,134.22

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Solution

The fourth proportional to 534,248.21, 800,100.16 and 309,134.22 is: 462,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,248.21 : 800,100.16 = 309,134.22 : x
  2. Step 2: Convert to fraction form
    534,248.21/800,100.16 = 309,134.22/x
  3. Step 3: Cross multiply
    534,248.21x = 800,100.16 × 309,134.22
  4. Step 4: Simplify right side
    534,248.21x = 247,338,338,883.48
  5. Step 5: Solve for x
    x = 247,338,338,883.48/534,248.21
  6. Step 6: Final answer
    x = 462,965.22

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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.