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Finding the Fourth Proportional to 521,530.56, 782,170.56 and 240,778.08

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Solution

The fourth proportional to 521,530.56, 782,170.56 and 240,778.08 is: 361,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,530.56 : 782,170.56 = 240,778.08 : x
  2. Step 2: Convert to fraction form
    521,530.56/782,170.56 = 240,778.08/x
  3. Step 3: Cross multiply
    521,530.56x = 782,170.56 × 240,778.08
  4. Step 4: Simplify right side
    521,530.56x = 188,329,525,669.33
  5. Step 5: Solve for x
    x = 188,329,525,669.33/521,530.56
  6. Step 6: Final answer
    x = 361,109.28

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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.