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Finding the Fourth Proportional to 4,736,728.40, 7,103,537.40 and 1,744,523.60

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Solution

The fourth proportional to 4,736,728.40, 7,103,537.40 and 1,744,523.60 is: 2,616,212.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,736,728.40 : 7,103,537.40 = 1,744,523.60 : x
  2. Step 2: Convert to fraction form
    4,736,728.40/7,103,537.40 = 1,744,523.60/x
  3. Step 3: Cross multiply
    4,736,728.40x = 7,103,537.40 × 1,744,523.60
  4. Step 4: Simplify right side
    4,736,728.40x = 12,392,288,637,782.64
  5. Step 5: Solve for x
    x = 12,392,288,637,782.64/4,736,728.40
  6. Step 6: Final answer
    x = 2,616,212.62

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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.