Home / 808,128.24-1,115,215.46-445,549.56

Finding the Fourth Proportional to 808,128.24, 1,115,215.46 and 445,549.56

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Solution

The fourth proportional to 808,128.24, 1,115,215.46 and 445,549.56 is: 614,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,128.24 : 1,115,215.46 = 445,549.56 : x
  2. Step 2: Convert to fraction form
    808,128.24/1,115,215.46 = 445,549.56/x
  3. Step 3: Cross multiply
    808,128.24x = 1,115,215.46 × 445,549.56
  4. Step 4: Simplify right side
    808,128.24x = 496,883,757,508.20
  5. Step 5: Solve for x
    x = 496,883,757,508.20/808,128.24
  6. Step 6: Final answer
    x = 614,857.56

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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.