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Finding the Fourth Proportional to 348,304.71, 480,215.54 and 225,580.26

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Solution

The fourth proportional to 348,304.71, 480,215.54 and 225,580.26 is: 311,012.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,304.71 : 480,215.54 = 225,580.26 : x
  2. Step 2: Convert to fraction form
    348,304.71/480,215.54 = 225,580.26/x
  3. Step 3: Cross multiply
    348,304.71x = 480,215.54 × 225,580.26
  4. Step 4: Simplify right side
    348,304.71x = 108,327,145,241.34
  5. Step 5: Solve for x
    x = 108,327,145,241.34/348,304.71
  6. Step 6: Final answer
    x = 311,012.58

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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.