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Finding the Fourth Proportional to 2,990,465.70, 4,485,698.55 and 2,990,465.70

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Solution

The fourth proportional to 2,990,465.70, 4,485,698.55 and 2,990,465.70 is: 4,485,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,465.70 : 4,485,698.55 = 2,990,465.70 : x
  2. Step 2: Convert to fraction form
    2,990,465.70/4,485,698.55 = 2,990,465.70/x
  3. Step 3: Cross multiply
    2,990,465.70x = 4,485,698.55 × 2,990,465.70
  4. Step 4: Simplify right side
    2,990,465.70x = 13,414,327,654,314.73
  5. Step 5: Solve for x
    x = 13,414,327,654,314.73/2,990,465.70
  6. Step 6: Final answer
    x = 4,485,698.55

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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.