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Finding the Fourth Proportional to 3,771,980.04, 5,658,813.88 and 1,375,824.78

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Solution

The fourth proportional to 3,771,980.04, 5,658,813.88 and 1,375,824.78 is: 2,064,044.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771,980.04 : 5,658,813.88 = 1,375,824.78 : x
  2. Step 2: Convert to fraction form
    3,771,980.04/5,658,813.88 = 1,375,824.78/x
  3. Step 3: Cross multiply
    3,771,980.04x = 5,658,813.88 × 1,375,824.78
  4. Step 4: Simplify right side
    3,771,980.04x = 7,785,536,361,511.95
  5. Step 5: Solve for x
    x = 7,785,536,361,511.95/3,771,980.04
  6. Step 6: Final answer
    x = 2,064,044.95

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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.