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Finding the Fourth Proportional to 618,182.70, 926,582.85 and 263,136.30

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Solution

The fourth proportional to 618,182.70, 926,582.85 and 263,136.30 is: 394,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,182.70 : 926,582.85 = 263,136.30 : x
  2. Step 2: Convert to fraction form
    618,182.70/926,582.85 = 263,136.30/x
  3. Step 3: Cross multiply
    618,182.70x = 926,582.85 × 263,136.30
  4. Step 4: Simplify right side
    618,182.70x = 243,817,582,792.46
  5. Step 5: Solve for x
    x = 243,817,582,792.46/618,182.70
  6. Step 6: Final answer
    x = 394,410.23

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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.