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Finding the Fourth Proportional to 403,803.51, 557,273.24 and 222,515.13

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Solution

The fourth proportional to 403,803.51, 557,273.24 and 222,515.13 is: 307,084.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,803.51 : 557,273.24 = 222,515.13 : x
  2. Step 2: Convert to fraction form
    403,803.51/557,273.24 = 222,515.13/x
  3. Step 3: Cross multiply
    403,803.51x = 557,273.24 × 222,515.13
  4. Step 4: Simplify right side
    403,803.51x = 124,001,726,331.55
  5. Step 5: Solve for x
    x = 124,001,726,331.55/403,803.51
  6. Step 6: Final answer
    x = 307,084.32

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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.