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Finding the Fourth Proportional to 1,935,879.40, 2,904,683.10 and 674,612.20

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Solution

The fourth proportional to 1,935,879.40, 2,904,683.10 and 674,612.20 is: 1,012,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935,879.40 : 2,904,683.10 = 674,612.20 : x
  2. Step 2: Convert to fraction form
    1,935,879.40/2,904,683.10 = 674,612.20/x
  3. Step 3: Cross multiply
    1,935,879.40x = 2,904,683.10 × 674,612.20
  4. Step 4: Simplify right side
    1,935,879.40x = 1,959,534,656,393.82
  5. Step 5: Solve for x
    x = 1,959,534,656,393.82/1,935,879.40
  6. Step 6: Final answer
    x = 1,012,219.39

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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.