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Finding the Fourth Proportional to 462,873.79, 638,824.89 and 258,936.04

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Solution

The fourth proportional to 462,873.79, 638,824.89 and 258,936.04 is: 357,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,873.79 : 638,824.89 = 258,936.04 : x
  2. Step 2: Convert to fraction form
    462,873.79/638,824.89 = 258,936.04/x
  3. Step 3: Cross multiply
    462,873.79x = 638,824.89 × 258,936.04
  4. Step 4: Simplify right side
    462,873.79x = 165,414,787,270.04
  5. Step 5: Solve for x
    x = 165,414,787,270.04/462,873.79
  6. Step 6: Final answer
    x = 357,364.77

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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.