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Finding the Fourth Proportional to 525,765.98, 725,571.60 and 321,812.84

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Solution

The fourth proportional to 525,765.98, 725,571.60 and 321,812.84 is: 444,110.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,765.98 : 725,571.60 = 321,812.84 : x
  2. Step 2: Convert to fraction form
    525,765.98/725,571.60 = 321,812.84/x
  3. Step 3: Cross multiply
    525,765.98x = 725,571.60 × 321,812.84
  4. Step 4: Simplify right side
    525,765.98x = 233,498,257,219.34
  5. Step 5: Solve for x
    x = 233,498,257,219.34/525,765.98
  6. Step 6: Final answer
    x = 444,110.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.