Home / 403,876.71-557,327.16-222,588.09

Finding the Fourth Proportional to 403,876.71, 557,327.16 and 222,588.09

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Solution

The fourth proportional to 403,876.71, 557,327.16 and 222,588.09 is: 307,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,876.71 : 557,327.16 = 222,588.09 : x
  2. Step 2: Convert to fraction form
    403,876.71/557,327.16 = 222,588.09/x
  3. Step 3: Cross multiply
    403,876.71x = 557,327.16 × 222,588.09
  4. Step 4: Simplify right side
    403,876.71x = 124,054,388,049.52
  5. Step 5: Solve for x
    x = 124,054,388,049.52/403,876.71
  6. Step 6: Final answer
    x = 307,159.05

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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.