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Finding the Fourth Proportional to 492,399.48, 738,598.98 and 118,422.36

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Solution

The fourth proportional to 492,399.48, 738,598.98 and 118,422.36 is: 177,633.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,399.48 : 738,598.98 = 118,422.36 : x
  2. Step 2: Convert to fraction form
    492,399.48/738,598.98 = 118,422.36/x
  3. Step 3: Cross multiply
    492,399.48x = 738,598.98 × 118,422.36
  4. Step 4: Simplify right side
    492,399.48x = 87,466,634,305.19
  5. Step 5: Solve for x
    x = 87,466,634,305.19/492,399.48
  6. Step 6: Final answer
    x = 177,633.48

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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.