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Finding the Fourth Proportional to 555,200.68, 831,539.74 and 434,505.64

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Solution

The fourth proportional to 555,200.68, 831,539.74 and 434,505.64 is: 650,771.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,200.68 : 831,539.74 = 434,505.64 : x
  2. Step 2: Convert to fraction form
    555,200.68/831,539.74 = 434,505.64/x
  3. Step 3: Cross multiply
    555,200.68x = 831,539.74 × 434,505.64
  4. Step 4: Simplify right side
    555,200.68x = 361,308,706,914.13
  5. Step 5: Solve for x
    x = 361,308,706,914.13/555,200.68
  6. Step 6: Final answer
    x = 650,771.37

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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.