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Finding the Fourth Proportional to 508,862.10, 763,348.51 and 188,976.44

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Solution

The fourth proportional to 508,862.10, 763,348.51 and 188,976.44 is: 283,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,862.10 : 763,348.51 = 188,976.44 : x
  2. Step 2: Convert to fraction form
    508,862.10/763,348.51 = 188,976.44/x
  3. Step 3: Cross multiply
    508,862.10x = 763,348.51 × 188,976.44
  4. Step 4: Simplify right side
    508,862.10x = 144,254,883,899.10
  5. Step 5: Solve for x
    x = 144,254,883,899.10/508,862.10
  6. Step 6: Final answer
    x = 283,485.22

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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.