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Finding the Fourth Proportional to 484,217.73, 726,320.70 and 217,790.10

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Solution

The fourth proportional to 484,217.73, 726,320.70 and 217,790.10 is: 326,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,217.73 : 726,320.70 = 217,790.10 : x
  2. Step 2: Convert to fraction form
    484,217.73/726,320.70 = 217,790.10/x
  3. Step 3: Cross multiply
    484,217.73x = 726,320.70 × 217,790.10
  4. Step 4: Simplify right side
    484,217.73x = 158,185,457,885.07
  5. Step 5: Solve for x
    x = 158,185,457,885.07/484,217.73
  6. Step 6: Final answer
    x = 326,682.50

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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.