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Finding the Fourth Proportional to 525,185.60, 788,167.20 and 347,633.60

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Solution

The fourth proportional to 525,185.60, 788,167.20 and 347,633.60 is: 521,707.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,185.60 : 788,167.20 = 347,633.60 : x
  2. Step 2: Convert to fraction form
    525,185.60/788,167.20 = 347,633.60/x
  3. Step 3: Cross multiply
    525,185.60x = 788,167.20 × 347,633.60
  4. Step 4: Simplify right side
    525,185.60x = 273,993,401,137.92
  5. Step 5: Solve for x
    x = 273,993,401,137.92/525,185.60
  6. Step 6: Final answer
    x = 521,707.76

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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.