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Finding the Fourth Proportional to 275,497.42, 380,180.90 and 152,983.38

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Solution

The fourth proportional to 275,497.42, 380,180.90 and 152,983.38 is: 211,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,497.42 : 380,180.90 = 152,983.38 : x
  2. Step 2: Convert to fraction form
    275,497.42/380,180.90 = 152,983.38/x
  3. Step 3: Cross multiply
    275,497.42x = 380,180.90 × 152,983.38
  4. Step 4: Simplify right side
    275,497.42x = 58,161,361,116.71
  5. Step 5: Solve for x
    x = 58,161,361,116.71/275,497.42
  6. Step 6: Final answer
    x = 211,114.00

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1.5x scale

Why These Related Problems?

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