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Finding the Fourth Proportional to 525,773.60, 788,487.60 and 193,306.40

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Solution

The fourth proportional to 525,773.60, 788,487.60 and 193,306.40 is: 289,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,773.60 : 788,487.60 = 193,306.40 : x
  2. Step 2: Convert to fraction form
    525,773.60/788,487.60 = 193,306.40/x
  3. Step 3: Cross multiply
    525,773.60x = 788,487.60 × 193,306.40
  4. Step 4: Simplify right side
    525,773.60x = 152,419,699,400.64
  5. Step 5: Solve for x
    x = 152,419,699,400.64/525,773.60
  6. Step 6: Final answer
    x = 289,896.07

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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.