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Finding the Fourth Proportional to 407,988,399.64, 563,007,559.26 and 222,345,419.80

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Solution

The fourth proportional to 407,988,399.64, 563,007,559.26 and 222,345,419.80 is: 306,827,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,988,399.64 : 563,007,559.26 = 222,345,419.80 : x
  2. Step 2: Convert to fraction form
    407,988,399.64/563,007,559.26 = 222,345,419.80/x
  3. Step 3: Cross multiply
    407,988,399.64x = 563,007,559.26 × 222,345,419.80
  4. Step 4: Simplify right side
    407,988,399.64x = 125,182,152,114,238,080
  5. Step 5: Solve for x
    x = 125,182,152,114,238,080/407,988,399.64
  6. Step 6: Final answer
    x = 306,827,724.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.