Home / 808,203.52-1,115,328.41-445,640.37

Finding the Fourth Proportional to 808,203.52, 1,115,328.41 and 445,640.37

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Solution

The fourth proportional to 808,203.52, 1,115,328.41 and 445,640.37 is: 614,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,203.52 : 1,115,328.41 = 445,640.37 : x
  2. Step 2: Convert to fraction form
    808,203.52/1,115,328.41 = 445,640.37/x
  3. Step 3: Cross multiply
    808,203.52x = 1,115,328.41 × 445,640.37
  4. Step 4: Simplify right side
    808,203.52x = 497,035,365,303.91
  5. Step 5: Solve for x
    x = 497,035,365,303.91/808,203.52
  6. Step 6: Final answer
    x = 614,987.87

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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.