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Finding the Fourth Proportional to 2,987,194.80, 4,472,497.80 and 2,904,250.80

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Solution

The fourth proportional to 2,987,194.80, 4,472,497.80 and 2,904,250.80 is: 4,348,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,194.80 : 4,472,497.80 = 2,904,250.80 : x
  2. Step 2: Convert to fraction form
    2,987,194.80/4,472,497.80 = 2,904,250.80/x
  3. Step 3: Cross multiply
    2,987,194.80x = 4,472,497.80 × 2,904,250.80
  4. Step 4: Simplify right side
    2,987,194.80x = 12,989,255,313,648.24
  5. Step 5: Solve for x
    x = 12,989,255,313,648.24/2,987,194.80
  6. Step 6: Final answer
    x = 4,348,312.11

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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.