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Finding the Fourth Proportional to 553,968.91, 830,936.96 and 229,724.29

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Solution

The fourth proportional to 553,968.91, 830,936.96 and 229,724.29 is: 344,579.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,968.91 : 830,936.96 = 229,724.29 : x
  2. Step 2: Convert to fraction form
    553,968.91/830,936.96 = 229,724.29/x
  3. Step 3: Cross multiply
    553,968.91x = 830,936.96 × 229,724.29
  4. Step 4: Simplify right side
    553,968.91x = 190,886,399,944.80
  5. Step 5: Solve for x
    x = 190,886,399,944.80/553,968.91
  6. Step 6: Final answer
    x = 344,579.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.