Home / 808,103.03-1,115,130.80-445,507.07

Finding the Fourth Proportional to 808,103.03, 1,115,130.80 and 445,507.07

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Solution

The fourth proportional to 808,103.03, 1,115,130.80 and 445,507.07 is: 614,771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,103.03 : 1,115,130.80 = 445,507.07 : x
  2. Step 2: Convert to fraction form
    808,103.03/1,115,130.80 = 445,507.07/x
  3. Step 3: Cross multiply
    808,103.03x = 1,115,130.80 × 445,507.07
  4. Step 4: Simplify right side
    808,103.03x = 496,798,653,147.22
  5. Step 5: Solve for x
    x = 496,798,653,147.22/808,103.03
  6. Step 6: Final answer
    x = 614,771.43

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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.