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Finding the Fourth Proportional to 573,091.20, 859,334.40 and 193,881.60

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Solution

The fourth proportional to 573,091.20, 859,334.40 and 193,881.60 is: 290,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,091.20 : 859,334.40 = 193,881.60 : x
  2. Step 2: Convert to fraction form
    573,091.20/859,334.40 = 193,881.60/x
  3. Step 3: Cross multiply
    573,091.20x = 859,334.40 × 193,881.60
  4. Step 4: Simplify right side
    573,091.20x = 166,609,128,407.04
  5. Step 5: Solve for x
    x = 166,609,128,407.04/573,091.20
  6. Step 6: Final answer
    x = 290,720.10

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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.