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Finding the Fourth Proportional to 525,765.60, 787,611.60 and 488,440.80

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Solution

The fourth proportional to 525,765.60, 787,611.60 and 488,440.80 is: 731,698.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,765.60 : 787,611.60 = 488,440.80 : x
  2. Step 2: Convert to fraction form
    525,765.60/787,611.60 = 488,440.80/x
  3. Step 3: Cross multiply
    525,765.60x = 787,611.60 × 488,440.80
  4. Step 4: Simplify right side
    525,765.60x = 384,701,639,993.28
  5. Step 5: Solve for x
    x = 384,701,639,993.28/525,765.60
  6. Step 6: Final answer
    x = 731,698.00

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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.