Home / 403,763.90-557,186.70-222,492.38

Finding the Fourth Proportional to 403,763.90, 557,186.70 and 222,492.38

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Solution

The fourth proportional to 403,763.90, 557,186.70 and 222,492.38 is: 307,035.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,763.90 : 557,186.70 = 222,492.38 : x
  2. Step 2: Convert to fraction form
    403,763.90/557,186.70 = 222,492.38/x
  3. Step 3: Cross multiply
    403,763.90x = 557,186.70 × 222,492.38
  4. Step 4: Simplify right side
    403,763.90x = 123,969,794,987.35
  5. Step 5: Solve for x
    x = 123,969,794,987.35/403,763.90
  6. Step 6: Final answer
    x = 307,035.36

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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.