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Finding the Fourth Proportional to 3,319,657.20, 4,971,612.60 and 3,319,657.20

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Solution

The fourth proportional to 3,319,657.20, 4,971,612.60 and 3,319,657.20 is: 4,971,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319,657.20 : 4,971,612.60 = 3,319,657.20 : x
  2. Step 2: Convert to fraction form
    3,319,657.20/4,971,612.60 = 3,319,657.20/x
  3. Step 3: Cross multiply
    3,319,657.20x = 4,971,612.60 × 3,319,657.20
  4. Step 4: Simplify right side
    3,319,657.20x = 16,504,049,563,200.72
  5. Step 5: Solve for x
    x = 16,504,049,563,200.72/3,319,657.20
  6. Step 6: Final answer
    x = 4,971,612.60

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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.