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Finding the Fourth Proportional to 493,261.60, 739,892.40 and 353,293.60

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Solution

The fourth proportional to 493,261.60, 739,892.40 and 353,293.60 is: 529,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,261.60 : 739,892.40 = 353,293.60 : x
  2. Step 2: Convert to fraction form
    493,261.60/739,892.40 = 353,293.60/x
  3. Step 3: Cross multiply
    493,261.60x = 739,892.40 × 353,293.60
  4. Step 4: Simplify right side
    493,261.60x = 261,399,249,608.64
  5. Step 5: Solve for x
    x = 261,399,249,608.64/493,261.60
  6. Step 6: Final answer
    x = 529,940.40

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Similar ratio
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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.