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Finding the Fourth Proportional to 485,386.48, 669,675 and 270,485.92

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Solution

The fourth proportional to 485,386.48, 669,675 and 270,485.92 is: 373,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,386.48 : 669,675 = 270,485.92 : x
  2. Step 2: Convert to fraction form
    485,386.48/669,675 = 270,485.92/x
  3. Step 3: Cross multiply
    485,386.48x = 669,675 × 270,485.92
  4. Step 4: Simplify right side
    485,386.48x = 181,137,658,476
  5. Step 5: Solve for x
    x = 181,137,658,476/485,386.48
  6. Step 6: Final answer
    x = 373,182.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.