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Finding the Fourth Proportional to 3,164,019.12, 4,746,835.44 and 920,157.12

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Solution

The fourth proportional to 3,164,019.12, 4,746,835.44 and 920,157.12 is: 1,380,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164,019.12 : 4,746,835.44 = 920,157.12 : x
  2. Step 2: Convert to fraction form
    3,164,019.12/4,746,835.44 = 920,157.12/x
  3. Step 3: Cross multiply
    3,164,019.12x = 4,746,835.44 × 920,157.12
  4. Step 4: Simplify right side
    3,164,019.12x = 4,367,834,427,584.33
  5. Step 5: Solve for x
    x = 4,367,834,427,584.33/3,164,019.12
  6. Step 6: Final answer
    x = 1,380,470.30

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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.