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Finding the Fourth Proportional to 2,930,208.20, 4,107,890.20 and 2,930,208.20

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Solution

The fourth proportional to 2,930,208.20, 4,107,890.20 and 2,930,208.20 is: 4,107,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930,208.20 : 4,107,890.20 = 2,930,208.20 : x
  2. Step 2: Convert to fraction form
    2,930,208.20/4,107,890.20 = 2,930,208.20/x
  3. Step 3: Cross multiply
    2,930,208.20x = 4,107,890.20 × 2,930,208.20
  4. Step 4: Simplify right side
    2,930,208.20x = 12,036,973,548,739.64
  5. Step 5: Solve for x
    x = 12,036,973,548,739.64/2,930,208.20
  6. Step 6: Final answer
    x = 4,107,890.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.