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Finding the Fourth Proportional to 521,758.40, 782,750.01 and 161,922.20

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Solution

The fourth proportional to 521,758.40, 782,750.01 and 161,922.20 is: 242,918.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,758.40 : 782,750.01 = 161,922.20 : x
  2. Step 2: Convert to fraction form
    521,758.40/782,750.01 = 161,922.20/x
  3. Step 3: Cross multiply
    521,758.40x = 782,750.01 × 161,922.20
  4. Step 4: Simplify right side
    521,758.40x = 126,744,603,669.22
  5. Step 5: Solve for x
    x = 126,744,603,669.22/521,758.40
  6. Step 6: Final answer
    x = 242,918.19

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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.