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Finding the Fourth Proportional to 525,817.60, 788,553.60 and 193,350.40

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Solution

The fourth proportional to 525,817.60, 788,553.60 and 193,350.40 is: 289,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,817.60 : 788,553.60 = 193,350.40 : x
  2. Step 2: Convert to fraction form
    525,817.60/788,553.60 = 193,350.40/x
  3. Step 3: Cross multiply
    525,817.60x = 788,553.60 × 193,350.40
  4. Step 4: Simplify right side
    525,817.60x = 152,467,153,981.44
  5. Step 5: Solve for x
    x = 152,467,153,981.44/525,817.60
  6. Step 6: Final answer
    x = 289,962.06

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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.