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Finding the Fourth Proportional to 618,007.80, 927,011.70 and 263,033.40

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Solution

The fourth proportional to 618,007.80, 927,011.70 and 263,033.40 is: 394,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,007.80 : 927,011.70 = 263,033.40 : x
  2. Step 2: Convert to fraction form
    618,007.80/927,011.70 = 263,033.40/x
  3. Step 3: Cross multiply
    618,007.80x = 927,011.70 × 263,033.40
  4. Step 4: Simplify right side
    618,007.80x = 243,835,039,290.78
  5. Step 5: Solve for x
    x = 243,835,039,290.78/618,007.80
  6. Step 6: Final answer
    x = 394,550.10

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Similar ratio
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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.