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Finding the Fourth Proportional to 618,586.08, 929,434.32 and 394,047.52

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Solution

The fourth proportional to 618,586.08, 929,434.32 and 394,047.52 is: 592,061.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,586.08 : 929,434.32 = 394,047.52 : x
  2. Step 2: Convert to fraction form
    618,586.08/929,434.32 = 394,047.52/x
  3. Step 3: Cross multiply
    618,586.08x = 929,434.32 × 394,047.52
  4. Step 4: Simplify right side
    618,586.08x = 366,241,288,798.89
  5. Step 5: Solve for x
    x = 366,241,288,798.89/618,586.08
  6. Step 6: Final answer
    x = 592,061.96

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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.