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Finding the Fourth Proportional to 5,363,288.80, 8,042,794.80 and 1,768,055.20

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Solution

The fourth proportional to 5,363,288.80, 8,042,794.80 and 1,768,055.20 is: 2,651,377.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,363,288.80 : 8,042,794.80 = 1,768,055.20 : x
  2. Step 2: Convert to fraction form
    5,363,288.80/8,042,794.80 = 1,768,055.20/x
  3. Step 3: Cross multiply
    5,363,288.80x = 8,042,794.80 × 1,768,055.20
  4. Step 4: Simplify right side
    5,363,288.80x = 14,220,105,168,672.96
  5. Step 5: Solve for x
    x = 14,220,105,168,672.96/5,363,288.80
  6. Step 6: Final answer
    x = 2,651,377.86

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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.