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Finding the Fourth Proportional to 4,609,728.80, 6,914,537.58 and 1,197,713.48

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Solution

The fourth proportional to 4,609,728.80, 6,914,537.58 and 1,197,713.48 is: 1,796,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609,728.80 : 6,914,537.58 = 1,197,713.48 : x
  2. Step 2: Convert to fraction form
    4,609,728.80/6,914,537.58 = 1,197,713.48/x
  3. Step 3: Cross multiply
    4,609,728.80x = 6,914,537.58 × 1,197,713.48
  4. Step 4: Simplify right side
    4,609,728.80x = 8,281,634,867,532.58
  5. Step 5: Solve for x
    x = 8,281,634,867,532.58/4,609,728.80
  6. Step 6: Final answer
    x = 1,796,555.77

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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.