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Finding the Fourth Proportional to 3,894,458.40, 5,838,922.80 and 1,497,376.80

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Solution

The fourth proportional to 3,894,458.40, 5,838,922.80 and 1,497,376.80 is: 2,245,002.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894,458.40 : 5,838,922.80 = 1,497,376.80 : x
  2. Step 2: Convert to fraction form
    3,894,458.40/5,838,922.80 = 1,497,376.80/x
  3. Step 3: Cross multiply
    3,894,458.40x = 5,838,922.80 × 1,497,376.80
  4. Step 4: Simplify right side
    3,894,458.40x = 8,743,067,537,711.04
  5. Step 5: Solve for x
    x = 8,743,067,537,711.04/3,894,458.40
  6. Step 6: Final answer
    x = 2,245,002.16

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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.