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Finding the Fourth Proportional to 353,211.60, 529,817.40 and 314,720.40

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Solution

The fourth proportional to 353,211.60, 529,817.40 and 314,720.40 is: 472,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,211.60 : 529,817.40 = 314,720.40 : x
  2. Step 2: Convert to fraction form
    353,211.60/529,817.40 = 314,720.40/x
  3. Step 3: Cross multiply
    353,211.60x = 529,817.40 × 314,720.40
  4. Step 4: Simplify right side
    353,211.60x = 166,744,344,054.96
  5. Step 5: Solve for x
    x = 166,744,344,054.96/353,211.60
  6. Step 6: Final answer
    x = 472,080.60

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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.