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Finding the Fourth Proportional to 525,738.60, 788,607.90 and 188,940.60

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Solution

The fourth proportional to 525,738.60, 788,607.90 and 188,940.60 is: 283,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,738.60 : 788,607.90 = 188,940.60 : x
  2. Step 2: Convert to fraction form
    525,738.60/788,607.90 = 188,940.60/x
  3. Step 3: Cross multiply
    525,738.60x = 788,607.90 × 188,940.60
  4. Step 4: Simplify right side
    525,738.60x = 149,000,049,790.74
  5. Step 5: Solve for x
    x = 149,000,049,790.74/525,738.60
  6. Step 6: Final answer
    x = 283,410.90

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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.