Home / 403,905.68-557,387.05-222,617.71

Finding the Fourth Proportional to 403,905.68, 557,387.05 and 222,617.71

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Solution

The fourth proportional to 403,905.68, 557,387.05 and 222,617.71 is: 307,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,905.68 : 557,387.05 = 222,617.71 : x
  2. Step 2: Convert to fraction form
    403,905.68/557,387.05 = 222,617.71/x
  3. Step 3: Cross multiply
    403,905.68x = 557,387.05 × 222,617.71
  4. Step 4: Simplify right side
    403,905.68x = 124,084,228,654.66
  5. Step 5: Solve for x
    x = 124,084,228,654.66/403,905.68
  6. Step 6: Final answer
    x = 307,210.90

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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.