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Finding the Fourth Proportional to 618,056.80, 927,430.80 and 263,010.40

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Solution

The fourth proportional to 618,056.80, 927,430.80 and 263,010.40 is: 394,662.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,056.80 : 927,430.80 = 263,010.40 : x
  2. Step 2: Convert to fraction form
    618,056.80/927,430.80 = 263,010.40/x
  3. Step 3: Cross multiply
    618,056.80x = 927,430.80 × 263,010.40
  4. Step 4: Simplify right side
    618,056.80x = 243,923,945,680.32
  5. Step 5: Solve for x
    x = 243,923,945,680.32/618,056.80
  6. Step 6: Final answer
    x = 394,662.67

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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.