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Finding the Fourth Proportional to 418,892.58, 578,054.61 and 227,906.16

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Solution

The fourth proportional to 418,892.58, 578,054.61 and 227,906.16 is: 314,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,892.58 : 578,054.61 = 227,906.16 : x
  2. Step 2: Convert to fraction form
    418,892.58/578,054.61 = 227,906.16/x
  3. Step 3: Cross multiply
    418,892.58x = 578,054.61 × 227,906.16
  4. Step 4: Simplify right side
    418,892.58x = 131,742,206,435.40
  5. Step 5: Solve for x
    x = 131,742,206,435.40/418,892.58
  6. Step 6: Final answer
    x = 314,501.17

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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.