Home / 808,103.53-1,115,131.49-445,507.57

Finding the Fourth Proportional to 808,103.53, 1,115,131.49 and 445,507.57

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Solution

The fourth proportional to 808,103.53, 1,115,131.49 and 445,507.57 is: 614,772.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,103.53 : 1,115,131.49 = 445,507.57 : x
  2. Step 2: Convert to fraction form
    808,103.53/1,115,131.49 = 445,507.57/x
  3. Step 3: Cross multiply
    808,103.53x = 1,115,131.49 × 445,507.57
  4. Step 4: Simplify right side
    808,103.53x = 496,799,518,112.84
  5. Step 5: Solve for x
    x = 496,799,518,112.84/808,103.53
  6. Step 6: Final answer
    x = 614,772.12

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Double scale
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1.5x scale

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.