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Finding the Fourth Proportional to 2,965,469.76, 4,092,303.84 and 1,676,264.64

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Solution

The fourth proportional to 2,965,469.76, 4,092,303.84 and 1,676,264.64 is: 2,313,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965,469.76 : 4,092,303.84 = 1,676,264.64 : x
  2. Step 2: Convert to fraction form
    2,965,469.76/4,092,303.84 = 1,676,264.64/x
  3. Step 3: Cross multiply
    2,965,469.76x = 4,092,303.84 × 1,676,264.64
  4. Step 4: Simplify right side
    2,965,469.76x = 6,859,784,223,128.22
  5. Step 5: Solve for x
    x = 6,859,784,223,128.22/2,965,469.76
  6. Step 6: Final answer
    x = 2,313,220.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.