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Finding the Fourth Proportional to 348,809.36, 481,448.94 and 205,664.74

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Solution

The fourth proportional to 348,809.36, 481,448.94 and 205,664.74 is: 283,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,809.36 : 481,448.94 = 205,664.74 : x
  2. Step 2: Convert to fraction form
    348,809.36/481,448.94 = 205,664.74/x
  3. Step 3: Cross multiply
    348,809.36x = 481,448.94 × 205,664.74
  4. Step 4: Simplify right side
    348,809.36x = 99,017,071,068.38
  5. Step 5: Solve for x
    x = 99,017,071,068.38/348,809.36
  6. Step 6: Final answer
    x = 283,871.60

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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.